121340572450 has 24 divisors (see below), whose sum is σ = 227188137600. Its totient is φ = 48214794000.

The previous prime is 121340572421. The next prime is 121340572453. The reversal of 121340572450 is 54275043121.

It is not an unprimeable number, because it can be changed into a prime (121340572453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8028250 + ... + 8043349.

It is an arithmetic number, because the mean of its divisors is an integer number (9466172400).

Almost surely, 2^121340572450 is an apocalyptic number.

121340572450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121340572450 is a deficient number, since it is larger than the sum of its proper divisors (105847565150).

121340572450 is a wasteful number, since it uses less digits than its factorization.

121340572450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16071762 (or 16071757 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 121340572450 in words is "one hundred twenty-one billion, three hundred forty million, five hundred seventy-two thousand, four hundred fifty".