23122232012 has 24 divisors (see below), whose sum is σ = 45566395392. Its totient is φ = 10171069200.

The previous prime is 23122232009. The next prime is 23122232033. The reversal of 23122232012 is 21023222132.

It is a happy number.

It is a super-2 number, since 2×23122232012² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8474528 + ... + 8477255.

It is an arithmetic number, because the mean of its divisors is an integer number (1898599808).

Almost surely, 2^23122232012 is an apocalyptic number.

23122232012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23122232012 is a deficient number, since it is larger than the sum of its proper divisors (22444163380).

23122232012 is a wasteful number, since it uses less digits than its factorization.

23122232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16951829 (or 16951827 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23122232012 its reverse (21023222132), we get a palindrome (44145454144).

The spelling of 23122232012 in words is "twenty-three billion, one hundred twenty-two million, two hundred thirty-two thousand, twelve".