121449599600 has 60 divisors (see below), whose sum is σ = 333465908304. Its totient is φ = 41639861760.

The previous prime is 121449599573. The next prime is 121449599647. The reversal of 121449599600 is 6995944121.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21684629 + ... + 21690228.

Almost surely, 2^121449599600 is an apocalyptic number.

121449599600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121449599600 is an abundant number, since it is smaller than the sum of its proper divisors (212016308704).

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

121449599600 is a wasteful number, since it uses less digits than its factorization.

121449599600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43374882 (or 43374871 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 121449599600 in words is "one hundred twenty-one billion, four hundred forty-nine million, five hundred ninety-nine thousand, six hundred".