21022112101012 has 24 divisors (see below), whose sum is σ = 40137227095392. Its totient is φ = 9554528359200.

The previous prime is 21022112100961. The next prime is 21022112101043. The reversal of 21022112101012 is 21010121122012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23993278 + ... + 24854005.

It is an arithmetic number, because the mean of its divisors is an integer number (1672384462308).

Almost surely, 2^{21022112101012} is an apocalyptic number.

21022112101012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21022112101012 is a deficient number, since it is larger than the sum of its proper divisors (19115114994380).

21022112101012 is a wasteful number, since it uses less digits than its factorization.

21022112101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48857079 (or 48857077 counting only the distinct ones).

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

Adding to 21022112101012 its reverse (21010121122012), we get a palindrome (42032233223024).

The spelling of 21022112101012 in words is "twenty-one trillion, twenty-two billion, one hundred twelve million, one hundred one thousand, twelve".