121248488120 has 32 divisors (see below), whose sum is σ = 274615794720. Its totient is φ = 48178204800.

The previous prime is 121248488071. The next prime is 121248488129. The reversal of 121248488120 is 21884842121.

It is a happy number.

It is a super-2 number, since 2×121248488120² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121248488129) 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, 10031087 + ... + 10043166.

It is an arithmetic number, because the mean of its divisors is an integer number (8581743585).

Almost surely, 2^121248488120 is an apocalyptic number.

121248488120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121248488120 is an abundant number, since it is smaller than the sum of its proper divisors (153367306600).

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

121248488120 is a wasteful number, since it uses less digits than its factorization.

121248488120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20074415 (or 20074411 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 41.

The spelling of 121248488120 in words is "one hundred twenty-one billion, two hundred forty-eight million, four hundred eighty-eight thousand, one hundred twenty".