Properties of the Number 2122

Two Thousand One Hundred Twenty-Two

Basics

Value: 2121 → 2122 → 2123

Parity: even

Prime: No

Previous Prime: 2113

Next Prime: 2129

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 × 1061

Divisors: 1, 2, 1061, 2122

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100001001010

Octal: 4112

Duodecimal: 128A

Hexadecimal: 84a

Square: 4502884

Square Root: 46.06517122512408

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 that contain only 1's and 2's. Nonempty binary strings of length n in lexicographic order. A7931

Numbers k such that the k-th Euclid number A006862(k) = 1 + (Product of first k primes) is prime. A14545

n written in fractional base 3/2. A24629

Numbers k such that k²⁵⁶ + 1 is prime. A56995

a(n) = n concatenated with n + 1. A1704

Number of 2 X 2 singular integer matrices with elements from {0,...,n}. A59306

Semiprimes with prime sum of factors: twice the lesser of the twin prime pairs. A108605

a(n) = n² + 6. A114949

Number of cyclic graphs with oriented edges on n nodes (up to symmetry of dihedral group). A53656

Semigreedy Catalan Representation of nonnegative integers. A244159