22201224122021 has 16 divisors (see below), whose sum is σ = 25407046880640. Its totient is φ = 19003972367040.

The previous prime is 22201224122009. The next prime is 22201224122039. The reversal of 22201224122021 is 12022142210222.

It is a cyclic number.

It is not a de Polignac number, because 22201224122021 - 2²² = 22201219927717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201224152021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15836810 + ... + 17181588.

It is an arithmetic number, because the mean of its divisors is an integer number (1587940430040).

Almost surely, 2^{22201224122021} is an apocalyptic number.

It is an amenable number.

22201224122021 is a deficient number, since it is larger than the sum of its proper divisors (3205822758619).

22201224122021 is a wasteful number, since it uses less digits than its factorization.

22201224122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347964.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22201224122021 its reverse (12022142210222), we get a palindrome (34223366332243).

The spelling of 22201224122021 in words is "twenty-two trillion, two hundred one billion, two hundred twenty-four million, one hundred twenty-two thousand, twenty-one".