312222322011 has 16 divisors (see below), whose sum is σ = 416589132960. Its totient is φ = 208001925120.

The previous prime is 312222322007. The next prime is 312222322051. The reversal of 312222322011 is 110223222213.

It is not a de Polignac number, because 312222322011 - 2² = 312222322007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312222322051) 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, 38253771 + ... + 38261931.

It is an arithmetic number, because the mean of its divisors is an integer number (26036820810).

Almost surely, 2^312222322011 is an apocalyptic number.

312222322011 is a deficient number, since it is larger than the sum of its proper divisors (104366810949).

312222322011 is a wasteful number, since it uses less digits than its factorization.

312222322011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15566.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 312222322011 its reverse (110223222213), we get a palindrome (422445544224).

The spelling of 312222322011 in words is "three hundred twelve billion, two hundred twenty-two million, three hundred twenty-two thousand, eleven".