12311022 has 16 divisors (see below), whose sum is σ = 25471440. Its totient is φ = 3962112.

The previous prime is 12311017. The next prime is 12311023. The reversal of 12311022 is 22011321.

It is a super-2 number, since 2×12311022² = 303122525368968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12310989 and 12311007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35203 + ... + 35550.

It is an arithmetic number, because the mean of its divisors is an integer number (1591965).

Almost surely, 2^12311022 is an apocalyptic number.

12311022 is an abundant number, since it is smaller than the sum of its proper divisors (13160418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12311022 is a wasteful number, since it uses less digits than its factorization.

12311022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70787.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12311022 is about 3508.7065993041. The cubic root of 12311022 is about 230.9039536242.

Adding to 12311022 its reverse (22011321), we get a palindrome (34322343).

The spelling of 12311022 in words is "twelve million, three hundred eleven thousand, twenty-two".