202220002121121 has 12 divisors (see below), whose sum is σ = 299990033177172. Its totient is φ = 131169731105376.

The previous prime is 202220002121117. The next prime is 202220002121143. The reversal of 202220002121121 is 121121200022202.

It is a happy number.

202220002121121 is a `hidden beast` number, since 202 + 220 + 0 + 0 + 2 + 121 + 121 = 666.

202220002121121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 184861413140625 + 17358588980496 = 13596375^2 + 4166364^2 .

It is not a de Polignac number, because 202220002121121 - 2² = 202220002121117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202220002121094 and 202220002121103.

It is not an unprimeable number, because it can be changed into a prime (202220002121321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 303633636486 + ... + 303633637151.

It is an arithmetic number, because the mean of its divisors is an integer number (24999169431431).

Almost surely, 2^{202220002121121} is an apocalyptic number.

It is an amenable number.

202220002121121 is a deficient number, since it is larger than the sum of its proper divisors (97770031056051).

202220002121121 is a wasteful number, since it uses less digits than its factorization.

202220002121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607267273680 (or 607267273677 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202220002121121 its reverse (121121200022202), we get a palindrome (323341202143323).

The spelling of 202220002121121 in words is "two hundred two trillion, two hundred twenty billion, two million, one hundred twenty-one thousand, one hundred twenty-one".