121135660 has 24 divisors (see below), whose sum is σ = 254610720. Its totient is φ = 48411264.

The previous prime is 121135657. The next prime is 121135667. The reversal of 121135660 is 66531121.

It is not an unprimeable number, because it can be changed into a prime (121135667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30256 + ... + 34024.

It is an arithmetic number, because the mean of its divisors is an integer number (10608780).

Almost surely, 2^121135660 is an apocalyptic number.

121135660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121135660 is an abundant number, since it is smaller than the sum of its proper divisors (133475060).

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

121135660 is a wasteful number, since it uses less digits than its factorization.

121135660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5385 (or 5383 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 121135660 is about 11006.1646362391. The cubic root of 121135660 is about 494.7935199773.

Adding to 121135660 its reverse (66531121), we get a palindrome (187666781).

The spelling of 121135660 in words is "one hundred twenty-one million, one hundred thirty-five thousand, six hundred sixty".