22121102011110 has 64 divisors (see below), whose sum is σ = 53723282918400. Its totient is φ = 5828756586752.

The previous prime is 22121102011097. The next prime is 22121102011111. The reversal of 22121102011110 is 1111020112122.

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 22121102011110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121102011111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1184461 + ... + 6756119.

It is an arithmetic number, because the mean of its divisors is an integer number (839426295600).

Almost surely, 2^{22121102011110} is an apocalyptic number.

22121102011110 is an abundant number, since it is smaller than the sum of its proper divisors (31602180907290).

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

22121102011110 is a wasteful number, since it uses less digits than its factorization.

22121102011110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5573245.

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

Adding to 22121102011110 its reverse (1111020112122), we get a palindrome (23232122123232).

The spelling of 22121102011110 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred two million, eleven thousand, one hundred ten".