122212312 has 8 divisors (see below), whose sum is σ = 229148100. Its totient is φ = 61106152.

The previous prime is 122212301. The next prime is 122212327. The reversal of 122212312 is 213212221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7638262 + ... + 7638277.

Almost surely, 2^122212312 is an apocalyptic number.

It is an amenable number.

122212312 is a deficient number, since it is larger than the sum of its proper divisors (106935788).

122212312 is a wasteful number, since it uses less digits than its factorization.

122212312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15276545 (or 15276541 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 122212312 is about 11054.9677521013. The cubic root of 122212312 is about 496.2551042034.

Adding to 122212312 its reverse (213212221), we get a palindrome (335424533).

Subtracting 122212312 from its reverse (213212221), we obtain a palindrome (90999909).

The spelling of 122212312 in words is "one hundred twenty-two million, two hundred twelve thousand, three hundred twelve".