202020323121211 has 16 divisors (see below), whose sum is σ = 232032860801280. Its totient is φ = 172297963902240.

The previous prime is 202020323121193. The next prime is 202020323121223. The reversal of 202020323121211 is 112121323020202.

It is a cyclic number.

It is not a de Polignac number, because 202020323121211 - 2²⁷ = 202020188903483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202020323125211) 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, 84469441 + ... + 86828146.

It is an arithmetic number, because the mean of its divisors is an integer number (14502053800080).

Almost surely, 2^{202020323121211} is an apocalyptic number.

202020323121211 is a deficient number, since it is larger than the sum of its proper divisors (30012537680069).

202020323121211 is a wasteful number, since it uses less digits than its factorization.

202020323121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171298434.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 202020323121211 its reverse (112121323020202), we get a palindrome (314141646141413).

The spelling of 202020323121211 in words is "two hundred two trillion, twenty billion, three hundred twenty-three million, one hundred twenty-one thousand, two hundred eleven".