312232311222201 has 6 divisors (see below), whose sum is σ = 451002227320970. Its totient is φ = 208154874148128.

The previous prime is 312232311222199. The next prime is 312232311222229. The reversal of 312232311222201 is 102222113232213.

312232311222201 is a `hidden beast` number, since 3 + 1 + 2 + 2 + 3 + 231 + 1 + 222 + 201 = 666.

It can be written as a sum of positive squares in only one way, i.e., 307839832983225 + 4392478238976 = 17545365^2 + 2095824^2 .

It is not a de Polignac number, because 312232311222201 - 2¹ = 312232311222199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312232311220201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17346239512336 + ... + 17346239512353.

Almost surely, 2^{312232311222201} is an apocalyptic number.

It is an amenable number.

312232311222201 is a deficient number, since it is larger than the sum of its proper divisors (138769916098769).

312232311222201 is a wasteful number, since it uses less digits than its factorization.

312232311222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34692479024695 (or 34692479024692 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 312232311222201 its reverse (102222113232213), we get a palindrome (414454424454414).

The spelling of 312232311222201 in words is "three hundred twelve trillion, two hundred thirty-two billion, three hundred eleven million, two hundred twenty-two thousand, two hundred one".