311222113312233 has 16 divisors (see below), whose sum is σ = 415115981519616. Its totient is φ = 207404831426640.

The previous prime is 311222113312211. The next prime is 311222113312249. The reversal of 311222113312233 is 332213311222113.

It is a happy number.

It is not a de Polignac number, because 311222113312233 - 2²⁴ = 311222096535017 is a prime.

It is a super-2 number, since 2×311222113312233² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 311222113312233.

It is not an unprimeable number, because it can be changed into a prime (311222113312273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289342366 + ... + 290415992.

It is an arithmetic number, because the mean of its divisors is an integer number (25944748844976).

Almost surely, 2^{311222113312233} is an apocalyptic number.

It is an amenable number.

311222113312233 is a deficient number, since it is larger than the sum of its proper divisors (103893868207383).

311222113312233 is a wasteful number, since it uses less digits than its factorization.

311222113312233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109204.

The product of its digits is 7776, while the sum is 30.

Adding to 311222113312233 its reverse (332213311222113), we get a palindrome (643435424534346).

The spelling of 311222113312233 in words is "three hundred eleven trillion, two hundred twenty-two billion, one hundred thirteen million, three hundred twelve thousand, two hundred thirty-three".