202010122111021 has 16 divisors (see below), whose sum is σ = 233890043345280. Its totient is φ = 170896350196800.

The previous prime is 202010122111019. The next prime is 202010122111123. The reversal of 202010122111021 is 120111221010202.

202010122111021 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 202010122111021 - 2¹ = 202010122111019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202010122110986 and 202010122111004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202010122112021) 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, 450451911 + ... + 450900148.

It is an arithmetic number, because the mean of its divisors is an integer number (14618127709080).

Almost surely, 2^{202010122111021} is an apocalyptic number.

It is an amenable number.

202010122111021 is a deficient number, since it is larger than the sum of its proper divisors (31879921234259).

202010122111021 is a wasteful number, since it uses less digits than its factorization.

202010122111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901352484.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 202010122111021 its reverse (120111221010202), we get a palindrome (322121343121223).

The spelling of 202010122111021 in words is "two hundred two trillion, ten billion, one hundred twenty-two million, one hundred eleven thousand, twenty-one".