Properties of the Number 22122

Twenty-Two Thousand One Hundred Twenty-Two

Basics

Value: 22121 → 22122 → 22123

Parity: even

Prime: No

Previous Prime: 22111

Next Prime: 22123

Digit Sum: 9

Digital Root: 9

Palindrome: Yes

Factorization: 2 × 3 ² × 1229

Divisors: 1, 2, 3, 6, 9, 18, 1229, 2458, 3687, 7374

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011001101010

Octal: 53152

Duodecimal: 10976

Hexadecimal: 566a

Square: 489382884

Square Root: 148.73466307488647

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

Numbers which are divisible by prime(d) for all digits d in their decimal representation. A256786

Palindromes in base 3 (written in base 3). A118594

Number of subsets of {1..n} such that a unique set can be obtained by choosing a different binary index of each element. A370638

a(n) = 2*(10²ⁿ⁺¹-1)/9 - 10ⁿ. A332121

List of primitive words over the alphabet {1,2}. A213969

Palindromic and divisible by 9. A45644

Coefficients of factor polynomials U(n,x) associated with reciprocation. A147989

Number of partitions of n into at most 8 parts. A8637

Palindromes that are divisible by 6. A45641

Coefficients of denominator polynomials T(n,x) associated with reciprocation. A147986