21262022504121 has 16 divisors (see below), whose sum is σ = 32401499760000. Its totient is φ = 12148891880448.

The previous prime is 21262022504117. The next prime is 21262022504137. The reversal of 21262022504121 is 12140522026212.

It is not a de Polignac number, because 21262022504121 - 2² = 21262022504117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21262022504141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34489896 + ... + 35100953.

It is an arithmetic number, because the mean of its divisors is an integer number (2025093735000).

Almost surely, 2^{21262022504121} is an apocalyptic number.

21262022504121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21262022504121 is a deficient number, since it is larger than the sum of its proper divisors (11139477255879).

21262022504121 is a wasteful number, since it uses less digits than its factorization.

21262022504121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69605408.

The product of its (nonzero) digits is 7680, while the sum is 30.

The spelling of 21262022504121 in words is "twenty-one trillion, two hundred sixty-two billion, twenty-two million, five hundred four thousand, one hundred twenty-one".