121122975893 has 4 divisors (see below), whose sum is σ = 121314930528. Its totient is φ = 120931021260.

The previous prime is 121122975781. The next prime is 121122975913. The reversal of 121122975893 is 398579221121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121122975893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122975293) 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, 95976371 + ... + 95977632.

It is an arithmetic number, because the mean of its divisors is an integer number (30328732632).

Almost surely, 2^121122975893 is an apocalyptic number.

It is an amenable number.

121122975893 is a deficient number, since it is larger than the sum of its proper divisors (191954635).

121122975893 is an equidigital number, since it uses as much as digits as its factorization.

121122975893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191954634.

The product of its digits is 544320, while the sum is 50.

The spelling of 121122975893 in words is "one hundred twenty-one billion, one hundred twenty-two million, nine hundred seventy-five thousand, eight hundred ninety-three".