21022222110110 has 32 divisors (see below), whose sum is σ = 40783136899680. Its totient is φ = 7755885929088.

The previous prime is 21022222110101. The next prime is 21022222110121. The reversal of 21022222110110 is 1101122222012.

It is a Curzon number.

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, 64057697 + ... + 64385036.

It is an arithmetic number, because the mean of its divisors is an integer number (1274473028115).

Almost surely, 2^{21022222110110} is an apocalyptic number.

21022222110110 is a deficient number, since it is larger than the sum of its proper divisors (19760914789570).

21022222110110 is a wasteful number, since it uses less digits than its factorization.

21022222110110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128444012.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21022222110110 its reverse (1101122222012), we get a palindrome (22123344332122).

The spelling of 21022222110110 in words is "twenty-one trillion, twenty-two billion, two hundred twenty-two million, one hundred ten thousand, one hundred ten".