12551240693220 has 96 divisors (see below), whose sum is σ = 35186039280000. Its totient is φ = 3342945914880.

The previous prime is 12551240693219. The next prime is 12551240693237. The reversal of 12551240693220 is 2239604215521.

12551240693220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 189640054 + ... + 189706226.

It is an arithmetic number, because the mean of its divisors is an integer number (366521242500).

Almost surely, 2^{12551240693220} is an apocalyptic number.

12551240693220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12551240693220 is an abundant number, since it is smaller than the sum of its proper divisors (22634798586780).

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

12551240693220 is a wasteful number, since it uses less digits than its factorization.

12551240693220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69965 (or 69963 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 12551240693220 in words is "twelve trillion, five hundred fifty-one billion, two hundred forty million, six hundred ninety-three thousand, two hundred twenty".