21122210222110 has 32 divisors (see below), whose sum is σ = 38829834276480. Its totient is φ = 8268924636672.

The previous prime is 21122210222053. The next prime is 21122210222143. The reversal of 21122210222110 is 1122201222112.

It is a super-2 number, since 2×21122210222110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20177496 + ... + 21198484.

It is an arithmetic number, because the mean of its divisors is an integer number (1213432321140).

Almost surely, 2^{21122210222110} is an apocalyptic number.

21122210222110 is a deficient number, since it is larger than the sum of its proper divisors (17707624054370).

21122210222110 is a wasteful number, since it uses less digits than its factorization.

21122210222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065060.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21122210222110 its reverse (1122201222112), we get a palindrome (22244411444222).

The spelling of 21122210222110 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred ten million, two hundred twenty-two thousand, one hundred ten".