2202020100021 has 64 divisors (see below), whose sum is σ = 3471921543168. Its totient is φ = 1215503947008.

The previous prime is 2202020100017. The next prime is 2202020100029. The reversal of 2202020100021 is 1200010202022.

It is not a de Polignac number, because 2202020100021 - 2² = 2202020100017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202020100029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19355115 + ... + 19468551.

It is an arithmetic number, because the mean of its divisors is an integer number (54248774112).

Almost surely, 2^{2202020100021} is an apocalyptic number.

2202020100021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2202020100021 is a deficient number, since it is larger than the sum of its proper divisors (1269901443147).

2202020100021 is a wasteful number, since it uses less digits than its factorization.

2202020100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113770.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2202020100021 its reverse (1200010202022), we get a palindrome (3402030302043).

The spelling of 2202020100021 in words is "two trillion, two hundred two billion, twenty million, one hundred thousand, twenty-one".