12200111312 has 20 divisors (see below), whose sum is σ = 23653962240. Its totient is φ = 6095863008.

The previous prime is 12200111309. The next prime is 12200111321. The reversal of 12200111312 is 21311100221.

It is a super-2 number, since 2×12200111312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237968 + ... + 284655.

It is an arithmetic number, because the mean of its divisors is an integer number (1182698112).

Almost surely, 2^12200111312 is an apocalyptic number.

It is an amenable number.

12200111312 is a deficient number, since it is larger than the sum of its proper divisors (11453850928).

12200111312 is a wasteful number, since it uses less digits than its factorization.

12200111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524090 (or 524084 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12200111312 its reverse (21311100221), we get a palindrome (33511211533).

The spelling of 12200111312 in words is "twelve billion, two hundred million, one hundred eleven thousand, three hundred twelve".