121521050 has 48 divisors (see below), whose sum is σ = 263233152. Its totient is φ = 40872000.

The previous prime is 121521013. The next prime is 121521067. The reversal of 121521050 is 50125121.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15275 + ... + 21825.

It is an arithmetic number, because the mean of its divisors is an integer number (5484024).

Almost surely, 2^121521050 is an apocalyptic number.

121521050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121521050 is an abundant number, since it is smaller than the sum of its proper divisors (141712102).

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

121521050 is a wasteful number, since it uses less digits than its factorization.

121521050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6623 (or 6618 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 121521050 is about 11023.6586485613. The cubic root of 121521050 is about 495.3176887972.

Adding to 121521050 its reverse (50125121), we get a palindrome (171646171).

The spelling of 121521050 in words is "one hundred twenty-one million, five hundred twenty-one thousand, fifty".