22102311202021 has 4 divisors (see below), whose sum is σ = 22102328583072. Its totient is φ = 22102293820972.

The previous prime is 22102311201947. The next prime is 22102311202039. The reversal of 22102311202021 is 12020211320122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22102311202021 - 2³⁵ = 22067951463653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22102311202021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102311205021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6618385 + ... + 9381238.

It is an arithmetic number, because the mean of its divisors is an integer number (5525582145768).

Almost surely, 2^{22102311202021} is an apocalyptic number.

It is an amenable number.

22102311202021 is a deficient number, since it is larger than the sum of its proper divisors (17381051).

22102311202021 is a wasteful number, since it uses less digits than its factorization.

22102311202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17381050.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22102311202021 its reverse (12020211320122), we get a palindrome (34122522522143).

The spelling of 22102311202021 in words is "twenty-two trillion, one hundred two billion, three hundred eleven million, two hundred two thousand, twenty-one".