121115160 has 96 divisors (see below), whose sum is σ = 397640880. Its totient is φ = 31968000.

The previous prime is 121115147. The next prime is 121115161. The reversal of 121115160 is 61511121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121115161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34695 + ... + 38025.

Almost surely, 2^121115160 is an apocalyptic number.

121115160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121115160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198820440).

121115160 is an abundant number, since it is smaller than the sum of its proper divisors (276525720).

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

121115160 is a wasteful number, since it uses less digits than its factorization.

121115160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449 (or 3442 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

The square root of 121115160 is about 11005.2333005711. The cubic root of 121115160 is about 494.7656068112.

Adding to 121115160 its reverse (61511121), we get a palindrome (182626281).

It can be divided in two parts, 12111 and 5160, that added together give a palindrome (17271).

The spelling of 121115160 in words is "one hundred twenty-one million, one hundred fifteen thousand, one hundred sixty".