121855050 has 48 divisors (see below), whose sum is σ = 335782080. Its totient is φ = 32494320.

The previous prime is 121855049. The next prime is 121855073. The reversal of 121855050 is 50558121.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43782 + ... + 46481.

It is an arithmetic number, because the mean of its divisors is an integer number (6995460).

Almost surely, 2^121855050 is an apocalyptic number.

121855050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121855050 is an abundant number, since it is smaller than the sum of its proper divisors (213927030).

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

121855050 is a wasteful number, since it uses less digits than its factorization.

121855050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90284 (or 90273 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 121855050 is about 11038.7974888572. The cubic root of 121855050 is about 495.7710664144.

The spelling of 121855050 in words is "one hundred twenty-one million, eight hundred fifty-five thousand, fifty".