21112020122110 has 32 divisors (see below), whose sum is σ = 38175305186592. Its totient is φ = 8406227151360.

The previous prime is 21112020122107. The next prime is 21112020122159. The reversal of 21112020122110 is 1122102021112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13134954 + ... + 14654386.

It is an arithmetic number, because the mean of its divisors is an integer number (1192978287081).

Almost surely, 2^{21112020122110} is an apocalyptic number.

21112020122110 is a deficient number, since it is larger than the sum of its proper divisors (17063285064482).

21112020122110 is a wasteful number, since it uses less digits than its factorization.

21112020122110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525788.

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

Adding to 21112020122110 its reverse (1122102021112), we get a palindrome (22234122143222).

The spelling of 21112020122110 in words is "twenty-one trillion, one hundred twelve billion, twenty million, one hundred twenty-two thousand, one hundred ten".