22121221011022 has 64 divisors (see below), whose sum is σ = 41547817607040. Its totient is φ = 8612997120000.

The previous prime is 22121221011017. The next prime is 22121221011031. The reversal of 22121221011022 is 22011012212122.

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, 27214372 + ... + 28015432.

It is an arithmetic number, because the mean of its divisors is an integer number (649184650110).

Almost surely, 2^{22121221011022} is an apocalyptic number.

22121221011022 is a deficient number, since it is larger than the sum of its proper divisors (19426596596018).

22121221011022 is a wasteful number, since it uses less digits than its factorization.

22121221011022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805117.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22121221011022 its reverse (22011012212122), we get a palindrome (44132233223144).

The spelling of 22121221011022 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred twenty-one million, eleven thousand, twenty-two".