21022122110 has 16 divisors (see below), whose sum is σ = 41279803632. Its totient is φ = 7644408000.

The previous prime is 21022122103. The next prime is 21022122151. The reversal of 21022122110 is 1122122012.

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, 95554991 + ... + 95555210.

It is an arithmetic number, because the mean of its divisors is an integer number (2579987727).

Almost surely, 2^21022122110 is an apocalyptic number.

21022122110 is a deficient number, since it is larger than the sum of its proper divisors (20257681522).

21022122110 is a wasteful number, since it uses less digits than its factorization.

21022122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191110219.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21022122110 its reverse (1122122012), we get a palindrome (22144244122).

It can be divided in two parts, 2102 and 2122110, that added together give a palindrome (2124212).

The spelling of 21022122110 in words is "twenty-one billion, twenty-two million, one hundred twenty-two thousand, one hundred ten".