20202200002021 has 32 divisors (see below), whose sum is σ = 21308903497728. Its totient is φ = 19115552776320.

The previous prime is 20202200002009. The next prime is 20202200002063. The reversal of 20202200002021 is 12020000220202.

It is a cyclic number.

It is not a de Polignac number, because 20202200002021 - 2⁵ = 20202200001989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202200001992 and 20202200002010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202200002121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1398359220 + ... + 1398373666.

It is an arithmetic number, because the mean of its divisors is an integer number (665903234304).

Almost surely, 2^{20202200002021} is an apocalyptic number.

It is an amenable number.

20202200002021 is a deficient number, since it is larger than the sum of its proper divisors (1106703495707).

20202200002021 is a wasteful number, since it uses less digits than its factorization.

20202200002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16041.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20202200002021 its reverse (12020000220202), we get a palindrome (32222200222223).

The spelling of 20202200002021 in words is "twenty trillion, two hundred two billion, two hundred million, two thousand, twenty-one".