12554442120 has 96 divisors (see below), whose sum is σ = 41398580160. Its totient is φ = 3043497600.

The previous prime is 12554442101. The next prime is 12554442167. The reversal of 12554442120 is 2124445521.

It is a super-2 number, since 2×12554442120² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 417796 + ... + 446835.

It is an arithmetic number, because the mean of its divisors is an integer number (431235210).

Almost surely, 2^12554442120 is an apocalyptic number.

12554442120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12554442120 is an abundant number, since it is smaller than the sum of its proper divisors (28844138040).

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

12554442120 is a wasteful number, since it uses less digits than its factorization.

12554442120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864667 (or 864652 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 12554442120 its reverse (2124445521), we get a palindrome (14678887641).

The spelling of 12554442120 in words is "twelve billion, five hundred fifty-four million, four hundred forty-two thousand, one hundred twenty".