21022031110 has 16 divisors (see below), whose sum is σ = 39831217200. Its totient is φ = 7966243296.

The previous prime is 21022031101. The next prime is 21022031161. The reversal of 21022031110 is 1113022012.

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, 55320945 + ... + 55321324.

It is an arithmetic number, because the mean of its divisors is an integer number (2489451075).

Almost surely, 2^21022031110 is an apocalyptic number.

21022031110 is a deficient number, since it is larger than the sum of its proper divisors (18809186090).

21022031110 is a wasteful number, since it uses less digits than its factorization.

21022031110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110642295.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21022031110 its reverse (1113022012), we get a palindrome (22135053122).

The spelling of 21022031110 in words is "twenty-one billion, twenty-two million, thirty-one thousand, one hundred ten".