21101032211112 has 96 divisors (see below), whose sum is σ = 65354615164800. Its totient is φ = 6024998984832.

The previous prime is 21101032211111. The next prime is 21101032211117. The reversal of 21101032211112 is 21111223010112.

It is a happy number.

21101032211112 is a `hidden beast` number, since 211 + 0 + 10 + 322 + 11 + 112 = 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 (21101032211111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12641823 + ... + 14213294.

It is an arithmetic number, because the mean of its divisors is an integer number (680777241300).

Almost surely, 2^{21101032211112} is an apocalyptic number.

It is an amenable number.

21101032211112 is an abundant number, since it is smaller than the sum of its proper divisors (44253582953688).

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

21101032211112 is a wasteful number, since it uses less digits than its factorization.

21101032211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26856695 (or 26856688 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 21101032211112 its reverse (21111223010112), we get a palindrome (42212255221224).

The spelling of 21101032211112 in words is "twenty-one trillion, one hundred one billion, thirty-two million, two hundred eleven thousand, one hundred twelve".