121180860 has 240 divisors, whose sum is σ = 416317440. Its totient is φ = 29393280.

The previous prime is 121180853. The next prime is 121180889. The reversal of 121180860 is 68081121.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 954117 + ... + 954243.

It is an arithmetic number, because the mean of its divisors is an integer number (1734656).

Almost surely, 2^121180860 is an apocalyptic number.

121180860 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 121180860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208158720).

121180860 is an abundant number, since it is smaller than the sum of its proper divisors (295136580).

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

121180860 is a wasteful number, since it uses less digits than its factorization.

121180860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 121180860 is about 11008.2178394143. The cubic root of 121180860 is about 494.8550539797.

The spelling of 121180860 in words is "one hundred twenty-one million, one hundred eighty thousand, eight hundred sixty".