121550060 has 24 divisors (see below), whose sum is σ = 259067760. Its totient is φ = 47893824.

The previous prime is 121550047. The next prime is 121550081. The reversal of 121550060 is 60055121.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 7 ways as a sum of consecutive naturals, for example, 44015 + ... + 46694.

It is an arithmetic number, because the mean of its divisors is an integer number (10794490).

Almost surely, 2^121550060 is an apocalyptic number.

121550060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121550060 is an abundant number, since it is smaller than the sum of its proper divisors (137517700).

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

121550060 is a wasteful number, since it uses less digits than its factorization.

121550060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90785 (or 90783 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 121550060 is about 11024.9743763875. The cubic root of 121550060 is about 495.3571004132.

The spelling of 121550060 in words is "one hundred twenty-one million, five hundred fifty thousand, sixty".