11857221250 has 80 divisors (see below), whose sum is σ = 25585560000. Its totient is φ = 4035672000.

The previous prime is 11857221239. The next prime is 11857221283. The reversal of 11857221250 is 5212275811.

11857221250 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1211376 + ... + 1221124.

It is an arithmetic number, because the mean of its divisors is an integer number (319819500).

Almost surely, 2^11857221250 is an apocalyptic number.

11857221250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11857221250 is an abundant number, since it is smaller than the sum of its proper divisors (13728338750).

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

11857221250 is an equidigital number, since it uses as much as digits as its factorization.

11857221250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9917 (or 9902 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 34.

The spelling of 11857221250 in words is "eleven billion, eight hundred fifty-seven million, two hundred twenty-one thousand, two hundred fifty".