21102022011112 has 32 divisors (see below), whose sum is σ = 45219127273920. Its totient is φ = 9043621983360.

The previous prime is 21102022011097. The next prime is 21102022011139. The reversal of 21102022011112 is 21111022020112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3013023 + ... + 7161169.

It is an arithmetic number, because the mean of its divisors is an integer number (1413097727310).

Almost surely, 2^{21102022011112} is an apocalyptic number.

It is an amenable number.

21102022011112 is an abundant number, since it is smaller than the sum of its proper divisors (24117105262808).

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

21102022011112 is a wasteful number, since it uses less digits than its factorization.

21102022011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239001 (or 4238997 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21102022011112 its reverse (21111022020112), we get a palindrome (42213044031224).

The spelling of 21102022011112 in words is "twenty-one trillion, one hundred two billion, twenty-two million, eleven thousand, one hundred twelve".