Properties of the Number -121021

One Hundred Twenty-One Thousand Twenty-One

Basics

Value: -121022 → -121021 → -121020

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 121021

Divisors: 1, 121021

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11101100010111101

Octal: -354275

Duodecimal: -5A051

Hexadecimal: -1d8bd

Square: 14646082441

Square Root: 347.8807266866045

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

Primes whose decimal representation also represents a prime in base 3. A89981

Start with 100103 and repeatedly reverse the digits and add 2 to get the next term. A120218

Dihedral calculator primes: p, p upside down, p in a mirror, p upside-down-and-in-a-mirror are all primes. A134996

Emirps (A006567) whose difference with the reversal is a perfect square. A217386

Erroneous version of A134996. A38136

Non-palindromic primes which on subtracting their reversal give perfect squares. A80177

Greater of twin primes p such that 3·p-2 is also greater of twin primes. A177336

Palindromic primes in the sense of A007500 with digits '0', '1' and '2' only. A199302

Concatenate the ternary strings for 1,2,...,n-1, n, n-1, ..., 2,1. A360504

a(n) is the number of prime powers <= 3ⁿ. A24623