122211212 has 24 divisors (see below), whose sum is σ = 216833232. Its totient is φ = 60264000.

The previous prime is 122211209. The next prime is 122211217. The reversal of 122211212 is 212112221.

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

It is not an unprimeable number, because it can be changed into a prime (122211217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150287 + ... + 151097.

It is an arithmetic number, because the mean of its divisors is an integer number (9034718).

Almost surely, 2^122211212 is an apocalyptic number.

It is an amenable number.

122211212 is a deficient number, since it is larger than the sum of its proper divisors (94622020).

122211212 is a wasteful number, since it uses less digits than its factorization.

122211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289 (or 1287 counting only the distinct ones).

The product of its digits is 32, while the sum is 14.

The square root of 122211212 is about 11054.9180006005. The cubic root of 122211212 is about 496.2536153129.

Adding to 122211212 its reverse (212112221), we get a palindrome (334323433).

The spelling of 122211212 in words is "one hundred twenty-two million, two hundred eleven thousand, two hundred twelve".