122201321211 has 12 divisors (see below), whose sum is σ = 176529300792. Its totient is φ = 81460033056.

The previous prime is 122201321087. The next prime is 122201321257. The reversal of 122201321211 is 112123102221.

122201321211 is a `hidden beast` number, since 122 + 201 + 321 + 21 + 1 = 666.

It is not a de Polignac number, because 122201321211 - 2²⁵ = 122167766779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122201321911) 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, 522301 + ... + 719166.

It is an arithmetic number, because the mean of its divisors is an integer number (14710775066).

Almost surely, 2^122201321211 is an apocalyptic number.

122201321211 is a deficient number, since it is larger than the sum of its proper divisors (54327979581).

122201321211 is a wasteful number, since it uses less digits than its factorization.

122201321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252410 (or 1252407 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 122201321211 its reverse (112123102221), we get a palindrome (234324423432).

The spelling of 122201321211 in words is "one hundred twenty-two billion, two hundred one million, three hundred twenty-one thousand, two hundred eleven".