12240022056 has 64 divisors (see below), whose sum is σ = 31944067200. Its totient is φ = 3900956928.

The previous prime is 12240022031. The next prime is 12240022057. The reversal of 12240022056 is 65022004221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (12240022057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2490930 + ... + 2495838.

It is an arithmetic number, because the mean of its divisors is an integer number (499126050).

Almost surely, 2^12240022056 is an apocalyptic number.

It is an amenable number.

12240022056 is an abundant number, since it is smaller than the sum of its proper divisors (19704045144).

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

12240022056 is a wasteful number, since it uses less digits than its factorization.

12240022056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9458 (or 9454 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 12240022056 its reverse (65022004221), we get a palindrome (77262026277).

The spelling of 12240022056 in words is "twelve billion, two hundred forty million, twenty-two thousand, fifty-six".