312220133311 has 2 divisors, whose sum is σ = 312220133312. Its totient is φ = 312220133310.

The previous prime is 312220133287. The next prime is 312220133339. The reversal of 312220133311 is 113331022213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312220133311 - 2¹¹ = 312220131263 is a prime.

It is a super-2 number, since 2×312220133311² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312220133411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156110066655 + 156110066656.

It is an arithmetic number, because the mean of its divisors is an integer number (156110066656).

Almost surely, 2^312220133311 is an apocalyptic number.

312220133311 is a deficient number, since it is larger than the sum of its proper divisors (1).

312220133311 is an equidigital number, since it uses as much as digits as its factorization.

312220133311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 312220133311 its reverse (113331022213), we get a palindrome (425551155524).

The spelling of 312220133311 in words is "three hundred twelve billion, two hundred twenty million, one hundred thirty-three thousand, three hundred eleven".