122211202211 has 4 divisors (see below), whose sum is σ = 139669945392. Its totient is φ = 104752459032.

The previous prime is 122211202159. The next prime is 122211202219. The reversal of 122211202211 is 112202112221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122211202211 - 2²² = 122207007907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122211202211.

It is not an unprimeable number, because it can be changed into a prime (122211202219) 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, 8729371580 + ... + 8729371593.

It is an arithmetic number, because the mean of its divisors is an integer number (34917486348).

Almost surely, 2^122211202211 is an apocalyptic number.

122211202211 is a deficient number, since it is larger than the sum of its proper divisors (17458743181).

122211202211 is an equidigital number, since it uses as much as digits as its factorization.

122211202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17458743180.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122211202211 its reverse (112202112221), we get a palindrome (234413314432).

The spelling of 122211202211 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred two thousand, two hundred eleven".