122220212211 has 24 divisors (see below), whose sum is σ = 179053726176. Its totient is φ = 80327030400.

The previous prime is 122220212201. The next prime is 122220212237. The reversal of 122220212211 is 112212022221.

It is a happy number.

122220212211 is a `hidden beast` number, since 1 + 22 + 220 + 212 + 211 = 666.

It is not a de Polignac number, because 122220212211 - 2⁷ = 122220212083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122220212201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76735 + ... + 500328.

It is an arithmetic number, because the mean of its divisors is an integer number (7460571924).

Almost surely, 2^122220212211 is an apocalyptic number.

122220212211 is a deficient number, since it is larger than the sum of its proper divisors (56833513965).

122220212211 is a wasteful number, since it uses less digits than its factorization.

122220212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577403 (or 577400 counting only the distinct ones).

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

Adding to 122220212211 its reverse (112212022221), we get a palindrome (234432234432).

The spelling of 122220212211 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred twelve thousand, two hundred eleven".