21112652106975 has 384 divisors, whose sum is σ = 44019872547840. Its totient is φ = 8771235840000.

The previous prime is 21112652106911. The next prime is 21112652106977. The reversal of 21112652106975 is 57960125621112.

It is not a de Polignac number, because 21112652106975 - 2⁶ = 21112652106911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112652106977) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 5100904456 + ... + 5100908594.

It is an arithmetic number, because the mean of its divisors is an integer number (114635084760).

Almost surely, 2^{21112652106975} is an apocalyptic number.

21112652106975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21112652106975 is an abundant number, since it is smaller than the sum of its proper divisors (22907220440865).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21112652106975 is a wasteful number, since it uses less digits than its factorization.

21112652106975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4571 (or 4566 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 48.

The spelling of 21112652106975 in words is "twenty-one trillion, one hundred twelve billion, six hundred fifty-two million, one hundred six thousand, nine hundred seventy-five".