22121210011110 has 64 divisors (see below), whose sum is σ = 60784251558912. Its totient is φ = 5047198851456.

The previous prime is 22121210011093. The next prime is 22121210011157. The reversal of 22121210011110 is 1111001212122.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22121210011110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94442362 + ... + 94676301.

It is an arithmetic number, because the mean of its divisors is an integer number (949753930608).

Almost surely, 2^{22121210011110} is an apocalyptic number.

22121210011110 is an abundant number, since it is smaller than the sum of its proper divisors (38663041547802).

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

22121210011110 is a wasteful number, since it uses less digits than its factorization.

22121210011110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189119237.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 22121210011110 its reverse (1111001212122), we get a palindrome (23232211223232).

The spelling of 22121210011110 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred ten million, eleven thousand, one hundred ten".