121500260 has 96 divisors (see below), whose sum is σ = 308206080. Its totient is φ = 39333888.

The previous prime is 121500167. The next prime is 121500263. The reversal of 121500260 is 62005121.

It is not an unprimeable number, because it can be changed into a prime (121500263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 312146 + ... + 312534.

It is an arithmetic number, because the mean of its divisors is an integer number (3210480).

Almost surely, 2^121500260 is an apocalyptic number.

121500260 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 121500260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154103040).

121500260 is an abundant number, since it is smaller than the sum of its proper divisors (186705820).

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

121500260 is a wasteful number, since it uses less digits than its factorization.

121500260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 121500260 is about 11022.7156363575. The cubic root of 121500260 is about 495.2894406266.

Adding to 121500260 its reverse (62005121), we get a palindrome (183505381).

The spelling of 121500260 in words is "one hundred twenty-one million, five hundred thousand, two hundred sixty".