122211222212 has 24 divisors (see below), whose sum is σ = 216484331616. Its totient is φ = 60358814528.

The previous prime is 122211222169. The next prime is 122211222239. The reversal of 122211222212 is 212222112221.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2070128 + ... + 2128344.

It is an arithmetic number, because the mean of its divisors is an integer number (9020180484).

Almost surely, 2^122211222212 is an apocalyptic number.

It is an amenable number.

122211222212 is a deficient number, since it is larger than the sum of its proper divisors (94273109404).

122211222212 is a wasteful number, since it uses less digits than its factorization.

122211222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64627 (or 64625 counting only the distinct ones).

The product of its digits is 256, while the sum is 20.

Adding to 122211222212 its reverse (212222112221), we get a palindrome (334433334433).

The spelling of 122211222212 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred twenty-two thousand, two hundred twelve".