202001202201021 has 32 divisors (see below), whose sum is σ = 272030760529920. Its totient is φ = 133325946184704.

The previous prime is 202001202200983. The next prime is 202001202201083. The reversal of 202001202201021 is 120102202100202.

It is not a de Polignac number, because 202001202201021 - 2²³ = 202001193812413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202001202209021) 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, 691110916 + ... + 691403138.

It is an arithmetic number, because the mean of its divisors is an integer number (8500961266560).

Almost surely, 2^{202001202201021} is an apocalyptic number.

It is an amenable number.

202001202201021 is a deficient number, since it is larger than the sum of its proper divisors (70029558328899).

202001202201021 is a wasteful number, since it uses less digits than its factorization.

202001202201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297685.

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

Adding to 202001202201021 its reverse (120102202100202), we get a palindrome (322103404301223).

The spelling of 202001202201021 in words is "two hundred two trillion, one billion, two hundred two million, two hundred one thousand, twenty-one".