21022033110 has 32 divisors (see below), whose sum is σ = 54333871200. Its totient is φ = 5174654208.

The previous prime is 21022033099. The next prime is 21022033139. The reversal of 21022033110 is 1133022012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21022033110.

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, 26950935 + ... + 26951714.

It is an arithmetic number, because the mean of its divisors is an integer number (1697933475).

Almost surely, 2^21022033110 is an apocalyptic number.

21022033110 is an abundant number, since it is smaller than the sum of its proper divisors (33311838090).

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

21022033110 is a wasteful number, since it uses less digits than its factorization.

21022033110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53902672.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21022033110 its reverse (1133022012), we get a palindrome (22155055122).

The spelling of 21022033110 in words is "twenty-one billion, twenty-two million, thirty-three thousand, one hundred ten".