22121311223110 has 24 divisors (see below), whose sum is σ = 43767288488448. Its totient is φ = 8044113171600.

The previous prime is 22121311223051. The next prime is 22121311223129. The reversal of 22121311223110 is 1132211312122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9141036486 + ... + 9141038905.

It is an arithmetic number, because the mean of its divisors is an integer number (1823637020352).

Almost surely, 2^{22121311223110} is an apocalyptic number.

22121311223110 is a deficient number, since it is larger than the sum of its proper divisors (21645977265338).

22121311223110 is a wasteful number, since it uses less digits than its factorization.

22121311223110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18282075420 (or 18282075409 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 22121311223110 its reverse (1132211312122), we get a palindrome (23253522535232).

The spelling of 22121311223110 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred eleven million, two hundred twenty-three thousand, one hundred ten".