12242155056 has 160 divisors (see below), whose sum is σ = 34217899200. Its totient is φ = 3757670400.

The previous prime is 12242155019. The next prime is 12242155097. The reversal of 12242155056 is 65055124221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7334190 + ... + 7335858.

It is an arithmetic number, because the mean of its divisors is an integer number (213861870).

Almost surely, 2^12242155056 is an apocalyptic number.

12242155056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12242155056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17108949600).

12242155056 is an abundant number, since it is smaller than the sum of its proper divisors (21975744144).

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

12242155056 is a wasteful number, since it uses less digits than its factorization.

12242155056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887 (or 1881 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 12242155056 its reverse (65055124221), we get a palindrome (77297279277).

The spelling of 12242155056 in words is "twelve billion, two hundred forty-two million, one hundred fifty-five thousand, fifty-six".