21010133102112 has 192 divisors, whose sum is σ = 76400484249600. Its totient is φ = 5457177411840.

The previous prime is 21010133102111. The next prime is 21010133102129. The reversal of 21010133102112 is 21120133101012.

21010133102112 is a `hidden beast` number, since 21 + 0 + 101 + 331 + 0 + 211 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (21010133102111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157837912 + ... + 157970967.

It is an arithmetic number, because the mean of its divisors is an integer number (397919188800).

Almost surely, 2^{21010133102112} is an apocalyptic number.

21010133102112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21010133102112 is an abundant number, since it is smaller than the sum of its proper divisors (55390351147488).

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

21010133102112 is a wasteful number, since it uses less digits than its factorization.

21010133102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315808916 (or 315808902 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 21010133102112 its reverse (21120133101012), we get a palindrome (42130266203124).

The spelling of 21010133102112 in words is "twenty-one trillion, ten billion, one hundred thirty-three million, one hundred two thousand, one hundred twelve".