22100020022121 has 16 divisors (see below), whose sum is σ = 29575124878080. Its totient is φ = 14679189383760.

The previous prime is 22100020022081. The next prime is 22100020022161. The reversal of 22100020022121 is 12122002000122.

It is an interprime number because it is at equal distance from previous prime (22100020022081) and next prime (22100020022161).

It is not a de Polignac number, because 22100020022121 - 2⁷ = 22100020021993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22100020022121.

It is not an unprimeable number, because it can be changed into a prime (22100020022161) 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, 5794231 + ... + 8818908.

It is an arithmetic number, because the mean of its divisors is an integer number (1848445304880).

Almost surely, 2^{22100020022121} is an apocalyptic number.

It is an amenable number.

22100020022121 is a deficient number, since it is larger than the sum of its proper divisors (7475104855959).

22100020022121 is a wasteful number, since it uses less digits than its factorization.

22100020022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14614996.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22100020022121 its reverse (12122002000122), we get a palindrome (34222022022243).

The spelling of 22100020022121 in words is "twenty-two trillion, one hundred billion, twenty million, twenty-two thousand, one hundred twenty-one".