12111222002312 has 64 divisors (see below), whose sum is σ = 22947881827200. Its totient is φ = 5992132723200.

The previous prime is 12111222002311. The next prime is 12111222002357. The reversal of 12111222002312 is 21320022211121.

It is not an unprimeable number, because it can be changed into a prime (12111222002311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640152389 + ... + 640171307.

It is an arithmetic number, because the mean of its divisors is an integer number (358560653550).

Almost surely, 2^{12111222002312} is an apocalyptic number.

It is an amenable number.

12111222002312 is a deficient number, since it is larger than the sum of its proper divisors (10836659824888).

12111222002312 is a wasteful number, since it uses less digits than its factorization.

12111222002312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21166 (or 21162 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12111222002312 its reverse (21320022211121), we get a palindrome (33431244213433).

The spelling of 12111222002312 in words is "twelve trillion, one hundred eleven billion, two hundred twenty-two million, two thousand, three hundred twelve".