121372150 has 24 divisors (see below), whose sum is σ = 235569744. Its totient is φ = 46437600.

The previous prime is 121372117. The next prime is 121372169. The reversal of 121372150 is 51273121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51621 + ... + 53920.

It is an arithmetic number, because the mean of its divisors is an integer number (9815406).

Almost surely, 2^121372150 is an apocalyptic number.

121372150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121372150 is a deficient number, since it is larger than the sum of its proper divisors (114197594).

121372150 is a wasteful number, since it uses less digits than its factorization.

121372150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105576 (or 105571 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 121372150 is about 11016.9029223280. The cubic root of 121372150 is about 495.1153015083.

The spelling of 121372150 in words is "one hundred twenty-one million, three hundred seventy-two thousand, one hundred fifty".