22121120012110 has 128 divisors (see below), whose sum is σ = 47542101949440. Its totient is φ = 7254641332224.

The previous prime is 22121120012081. The next prime is 22121120012111. The reversal of 22121120012110 is 1121002112122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121120012111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23652561 + ... + 24570019.

It is an arithmetic number, because the mean of its divisors is an integer number (371422671480).

Almost surely, 2^{22121120012110} is an apocalyptic number.

22121120012110 is an abundant number, since it is smaller than the sum of its proper divisors (25420981937330).

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

22121120012110 is a wasteful number, since it uses less digits than its factorization.

22121120012110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917690.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22121120012110 its reverse (1121002112122), we get a palindrome (23242122124232).

The spelling of 22121120012110 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty million, twelve thousand, one hundred ten".