12311021022 has 8 divisors (see below), whose sum is σ = 24622042056. Its totient is φ = 4103673672.

The previous prime is 12311021017. The next prime is 12311021033. The reversal of 12311021022 is 22012011321.

It is a sphenic number, since it is the product of 3 distinct primes.

12311021022 is an admirable number.

It is a super-2 number, since 2×12311021022² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12311020992 and 12311021010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025918413 + ... + 1025918424.

It is an arithmetic number, because the mean of its divisors is an integer number (3077755257).

Almost surely, 2^12311021022 is an apocalyptic number.

12311021022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12311021022 is a wasteful number, since it uses less digits than its factorization.

12311021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051836842.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12311021022 its reverse (22012011321), we get a palindrome (34323032343).

The spelling of 12311021022 in words is "twelve billion, three hundred eleven million, twenty-one thousand, twenty-two".