121185250 has 32 divisors (see below), whose sum is σ = 227635200. Its totient is φ = 48308400.

The previous prime is 121185247. The next prime is 121185257. The reversal of 121185250 is 52581121.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (121185257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94111 + ... + 95389.

It is an arithmetic number, because the mean of its divisors is an integer number (7113600).

Almost surely, 2^121185250 is an apocalyptic number.

121185250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121185250 is a deficient number, since it is larger than the sum of its proper divisors (106449950).

121185250 is a wasteful number, since it uses less digits than its factorization.

121185250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675 (or 1665 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 121185250 is about 11008.4172340986. The cubic root of 121185250 is about 494.8610295864.

The spelling of 121185250 in words is "one hundred twenty-one million, one hundred eighty-five thousand, two hundred fifty".