22200012012021 has 4 divisors (see below), whose sum is σ = 29600016016032. Its totient is φ = 14800008008012.

The previous prime is 22200012012011. The next prime is 22200012012067. The reversal of 22200012012021 is 12021021000222.

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 22200012012021 - 2⁹ = 22200012011509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200012012011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3700002002001 + ... + 3700002002006.

It is an arithmetic number, because the mean of its divisors is an integer number (7400004004008).

Almost surely, 2^{22200012012021} is an apocalyptic number.

It is an amenable number.

22200012012021 is a deficient number, since it is larger than the sum of its proper divisors (7400004004011).

22200012012021 is an equidigital number, since it uses as much as digits as its factorization.

22200012012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7400004004010.

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

Adding to 22200012012021 its reverse (12021021000222), we get a palindrome (34221033012243).

The spelling of 22200012012021 in words is "twenty-two trillion, two hundred billion, twelve million, twelve thousand, twenty-one".