22200001022021 has 4 divisors (see below), whose sum is σ = 22200066634944. Its totient is φ = 22199935409100.

The previous prime is 22200001021943. The next prime is 22200001022039. The reversal of 22200001022021 is 12022010000222.

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 22200001022021 - 2¹⁰ = 22200001020997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22200001021987 and 22200001022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200001022041) 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, 32296295 + ... + 32976516.

It is an arithmetic number, because the mean of its divisors is an integer number (5550016658736).

Almost surely, 2^{22200001022021} is an apocalyptic number.

It is an amenable number.

22200001022021 is a deficient number, since it is larger than the sum of its proper divisors (65612923).

22200001022021 is an equidigital number, since it uses as much as digits as its factorization.

22200001022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65612922.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22200001022021 its reverse (12022010000222), we get a palindrome (34222011022243).

The spelling of 22200001022021 in words is "twenty-two trillion, two hundred billion, one million, twenty-two thousand, twenty-one".