202010021110121 has 4 divisors (see below), whose sum is σ = 230868595554432. Its totient is φ = 173151446665812.

The previous prime is 202010021110109. The next prime is 202010021110141. The reversal of 202010021110121 is 121011120010202.

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 202010021110121 - 2²⁶ = 202009954001257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202010021110096 and 202010021110105.

It is not an unprimeable number, because it can be changed into a prime (202010021110141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14429287222145 + ... + 14429287222158.

It is an arithmetic number, because the mean of its divisors is an integer number (57717148888608).

Almost surely, 2^{202010021110121} is an apocalyptic number.

It is an amenable number.

202010021110121 is a deficient number, since it is larger than the sum of its proper divisors (28858574444311).

202010021110121 is an equidigital number, since it uses as much as digits as its factorization.

202010021110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28858574444310.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 202010021110121 its reverse (121011120010202), we get a palindrome (323021141120323).

The spelling of 202010021110121 in words is "two hundred two trillion, ten billion, twenty-one million, one hundred ten thousand, one hundred twenty-one".