12122323256 has 8 divisors (see below), whose sum is σ = 22729356120. Its totient is φ = 6061161624.

The previous prime is 12122323253. The next prime is 12122323319. The reversal of 12122323256 is 65232322121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12122323256² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122323253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 757645196 + ... + 757645211.

It is an arithmetic number, because the mean of its divisors is an integer number (2841169515).

Almost surely, 2^12122323256 is an apocalyptic number.

It is an amenable number.

12122323256 is a deficient number, since it is larger than the sum of its proper divisors (10607032864).

12122323256 is a wasteful number, since it uses less digits than its factorization.

12122323256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515290413 (or 1515290409 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

Adding to 12122323256 its reverse (65232322121), we get a palindrome (77354645377).

The spelling of 12122323256 in words is "twelve billion, one hundred twenty-two million, three hundred twenty-three thousand, two hundred fifty-six".