121099737480 has 64 divisors (see below), whose sum is σ = 366159882240. Its totient is φ = 32038981632.

The previous prime is 121099737461. The next prime is 121099737481. The reversal of 121099737480 is 84737990121.

121099737480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (121099737481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3957849 + ... + 3988328.

It is an arithmetic number, because the mean of its divisors is an integer number (5721248160).

Almost surely, 2^121099737480 is an apocalyptic number.

121099737480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121099737480 is an abundant number, since it is smaller than the sum of its proper divisors (245060144760).

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

121099737480 is a wasteful number, since it uses less digits than its factorization.

121099737480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7946318 (or 7946314 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 51.

The spelling of 121099737480 in words is "one hundred twenty-one billion, ninety-nine million, seven hundred thirty-seven thousand, four hundred eighty".