12212200312 has 16 divisors (see below), whose sum is σ = 24659250840. Its totient is φ = 5636400096.

The previous prime is 12212200283. The next prime is 12212200327. The reversal of 12212200312 is 21300221221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58712398 + ... + 58712605.

Almost surely, 2^12212200312 is an apocalyptic number.

It is an amenable number.

12212200312 is an abundant number, since it is smaller than the sum of its proper divisors (12447050528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12212200312 is a wasteful number, since it uses less digits than its factorization.

12212200312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117425022 (or 117425018 counting only the distinct ones).

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

Adding to 12212200312 its reverse (21300221221), we get a palindrome (33512421533).

The spelling of 12212200312 in words is "twelve billion, two hundred twelve million, two hundred thousand, three hundred twelve".