121099480 has 16 divisors (see below), whose sum is σ = 272473920. Its totient is φ = 48439776.

The previous prime is 121099477. The next prime is 121099487. The reversal of 121099480 is 84990121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121099487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1513704 + ... + 1513783.

It is an arithmetic number, because the mean of its divisors is an integer number (17029620).

Almost surely, 2^121099480 is an apocalyptic number.

121099480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121099480 is an abundant number, since it is smaller than the sum of its proper divisors (151374440).

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

121099480 is a wasteful number, since it uses less digits than its factorization.

121099480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027498 (or 3027494 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 121099480 is about 11004.5208891619. The cubic root of 121099480 is about 494.7442545171.

The spelling of 121099480 in words is "one hundred twenty-one million, ninety-nine thousand, four hundred eighty".