122211212211 has 16 divisors (see below), whose sum is σ = 197513070720. Its totient is φ = 74067401160.

The previous prime is 122211212203. The next prime is 122211212213. The reversal of 122211212211 is 112212112221.

It is not a de Polignac number, because 122211212211 - 2³ = 122211212203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122211212213) 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, 205742485 + ... + 205743078.

It is an arithmetic number, because the mean of its divisors is an integer number (12344566920).

Almost surely, 2^122211212211 is an apocalyptic number.

122211212211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122211212211 is a deficient number, since it is larger than the sum of its proper divisors (75301858509).

122211212211 is a wasteful number, since it uses less digits than its factorization.

122211212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411485583 (or 411485577 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

Adding to 122211212211 its reverse (112212112221), we get a palindrome (234423324432).

The spelling of 122211212211 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred twelve thousand, two hundred eleven".