121250115 has 80 divisors (see below), whose sum is σ = 261592320. Its totient is φ = 52488000.

The previous prime is 121250113. The next prime is 121250119. The reversal of 121250115 is 511052121.

It is not a de Polignac number, because 121250115 - 2¹ = 121250113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121250111) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 52740 + ... + 54990.

It is an arithmetic number, because the mean of its divisors is an integer number (3269904).

Almost surely, 2^121250115 is an apocalyptic number.

121250115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121250115 is an abundant number, since it is smaller than the sum of its proper divisors (140342205).

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

121250115 is a wasteful number, since it uses less digits than its factorization.

121250115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294 (or 2285 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 121250115 is about 11011.3629946524. The cubic root of 121250115 is about 494.9493061033.

The spelling of 121250115 in words is "one hundred twenty-one million, two hundred fifty thousand, one hundred fifteen".