12251208780 has 72 divisors (see below), whose sum is σ = 39348009792. Its totient is φ = 3074812416.

The previous prime is 12251208709. The next prime is 12251208817. The reversal of 12251208780 is 8780215221.

12251208780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12251208780² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1998772 + ... + 2004891.

It is an arithmetic number, because the mean of its divisors is an integer number (546500136).

Almost surely, 2^12251208780 is an apocalyptic number.

12251208780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12251208780 is an abundant number, since it is smaller than the sum of its proper divisors (27096801012).

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

12251208780 is a wasteful number, since it uses less digits than its factorization.

12251208780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003695 (or 4003690 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The spelling of 12251208780 in words is "twelve billion, two hundred fifty-one million, two hundred eight thousand, seven hundred eighty".