22121012110012 has 24 divisors (see below), whose sum is σ = 39703912562160. Its totient is φ = 10777689498240.

The previous prime is 22121012110003. The next prime is 22121012110013. The reversal of 22121012110012 is 21001121012122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121012110013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81414687 + ... + 81685942.

It is an arithmetic number, because the mean of its divisors is an integer number (1654329690090).

Almost surely, 2^{22121012110012} is an apocalyptic number.

It is an amenable number.

22121012110012 is a deficient number, since it is larger than the sum of its proper divisors (17582900452148).

22121012110012 is a wasteful number, since it uses less digits than its factorization.

22121012110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163101501 (or 163101499 counting only the distinct ones).

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

Adding to 22121012110012 its reverse (21001121012122), we get a palindrome (43122133122134).

The spelling of 22121012110012 in words is "twenty-two trillion, one hundred twenty-one billion, twelve million, one hundred ten thousand, twelve".