121115150 has 48 divisors (see below), whose sum is σ = 243734400. Its totient is φ = 44511360.

The previous prime is 121115147. The next prime is 121115161. The reversal of 121115150 is 51511121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252611 + ... + 253089.

It is an arithmetic number, because the mean of its divisors is an integer number (5077800).

Almost surely, 2^121115150 is an apocalyptic number.

121115150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121115150 is an abundant number, since it is smaller than the sum of its proper divisors (122619250).

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

121115150 is a wasteful number, since it uses less digits than its factorization.

121115150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 17.

The square root of 121115150 is about 11005.2328462418. The cubic root of 121115150 is about 494.7655931942.

Adding to 121115150 its reverse (51511121), we get a palindrome (172626271).

It can be divided in two parts, 1211 and 15150, that added together give a palindrome (16361).

The spelling of 121115150 in words is "one hundred twenty-one million, one hundred fifteen thousand, one hundred fifty".