312222010311 has 6 divisors (see below), whose sum is σ = 450987348240. Its totient is φ = 208148006868.

The previous prime is 312222010283. The next prime is 312222010349. The reversal of 312222010311 is 113010222213.

312222010311 is a `hidden beast` number, since 3 + 122 + 220 + 10 + 311 = 666.

It is not a de Polignac number, because 312222010311 - 2³⁷ = 174783056839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312222020311) 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, 17345667231 + ... + 17345667248.

It is an arithmetic number, because the mean of its divisors is an integer number (75164558040).

Almost surely, 2^312222010311 is an apocalyptic number.

312222010311 is a deficient number, since it is larger than the sum of its proper divisors (138765337929).

312222010311 is a wasteful number, since it uses less digits than its factorization.

312222010311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34691334485 (or 34691334482 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 312222010311 its reverse (113010222213), we get a palindrome (425232232524).

The spelling of 312222010311 in words is "three hundred twelve billion, two hundred twenty-two million, ten thousand, three hundred eleven".