202221100010121 has 16 divisors (see below), whose sum is σ = 271173469766400. Its totient is φ = 134041615319888.

The previous prime is 202221100010081. The next prime is 202221100010129. The reversal of 202221100010121 is 121010001122202.

202221100010121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 202221100010121 - 2⁹ = 202221100009609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202221100010121.

It is not an unprimeable number, because it can be changed into a prime (202221100010129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23372931 + ... + 30834008.

It is an arithmetic number, because the mean of its divisors is an integer number (16948341860400).

Almost surely, 2^{202221100010121} is an apocalyptic number.

It is an amenable number.

202221100010121 is a deficient number, since it is larger than the sum of its proper divisors (68952369756279).

202221100010121 is a wasteful number, since it uses less digits than its factorization.

202221100010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54214068.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 202221100010121 its reverse (121010001122202), we get a palindrome (323231101132323).

The spelling of 202221100010121 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred million, ten thousand, one hundred twenty-one".