231200222019986 has 32 divisors (see below), whose sum is σ = 374385798800640. Its totient is φ = 106727547994704.

The previous prime is 231200222019913. The next prime is 231200222019997. The reversal of 231200222019986 is 689910222002132.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 231200222019986.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158975240 + ... + 160422963.

It is an arithmetic number, because the mean of its divisors is an integer number (11699556212520).

Almost surely, 2^{231200222019986} is an apocalyptic number.

231200222019986 is a deficient number, since it is larger than the sum of its proper divisors (143185576780654).

231200222019986 is a wasteful number, since it uses less digits than its factorization.

231200222019986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319398710.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 231200222019986 in words is "two hundred thirty-one trillion, two hundred billion, two hundred twenty-two million, nineteen thousand, nine hundred eighty-six".