121799356475 has 12 divisors (see below), whose sum is σ = 151047769824. Its totient is φ = 97428796320.

The previous prime is 121799356453. The next prime is 121799356489. The reversal of 121799356475 is 574653997121.

It is not a de Polignac number, because 121799356475 - 2⁶ = 121799356411 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30659 + ... + 494508.

It is an arithmetic number, because the mean of its divisors is an integer number (12587314152).

Almost surely, 2^121799356475 is an apocalyptic number.

121799356475 is a deficient number, since it is larger than the sum of its proper divisors (29248413349).

121799356475 is an equidigital number, since it uses as much as digits as its factorization.

121799356475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534454 (or 534449 counting only the distinct ones).

The product of its digits is 14288400, while the sum is 59.

The spelling of 121799356475 in words is "one hundred twenty-one billion, seven hundred ninety-nine million, three hundred fifty-six thousand, four hundred seventy-five".