Properties of the Number -1222222

Two Hundred Twenty-Two Thousand Two Hundred Twenty-Two

Basics

Value: -1222223 → -1222222 → -1222221

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 611111

Divisors: 1, 2, 611111, 1222222

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100101010011001001110

Octal: -4523116

Duodecimal: -4AB37A

Hexadecimal: -12a64e

Square: 1493826617284

Square Root: 1105.5414962813472

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Expansion of x*(1+x)/((1-x)*(1-10·x²)). A94626

Number of nodes on a tree with degree 11 interior nodes and degree 1 boundary nodes. A90843

Numbers k such that rotating digits of k² left once still yields a square. A45878

Expansion of g.f. x*(1+11·x+x²)/((1-x)*(1+x)*(1-10·x²)). A94624

Generalized Lucas-Pascal triangle; (11·10ⁿ, 1). A164851

List of pairs (n,m) with n < m such that the decimal expansion of m is a cyclic shift of that of n and m² is a cyclic shift of n². A134514

"Wondrous representation" [right to left] of positive integer n, n >= 2. A303433

1 followed by 2n 2's. A131970

First elements of the pairs listed in A134514. A134584

Numbers with n digits from the set {1,2,4}, requiring a nondecreasing sequence of digits and a digits sum of A008578(n). A166747