22121021122010 has 48 divisors (see below), whose sum is σ = 41616694213920. Its totient is φ = 8463342265920.

The previous prime is 22121021121949. The next prime is 22121021122049. The reversal of 22121021122010 is 1022112012122.

It is a self number, because there is not a number n which added to its sum of digits gives 22121021122010.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12885956 + ... + 14501375.

It is an arithmetic number, because the mean of its divisors is an integer number (867014462790).

Almost surely, 2^{22121021122010} is an apocalyptic number.

22121021122010 is a deficient number, since it is larger than the sum of its proper divisors (19495673091910).

22121021122010 is a wasteful number, since it uses less digits than its factorization.

22121021122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27387471 (or 27387434 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22121021122010 its reverse (1022112012122), we get a palindrome (23143133134132).

The spelling of 22121021122010 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-one million, one hundred twenty-two thousand, ten".