122488888191 has 8 divisors (see below), whose sum is σ = 171914229120. Its totient is φ = 77361403032.

The previous prime is 122488888163. The next prime is 122488888199. The reversal of 122488888191 is 191888884221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122488888191 - 2¹⁰ = 122488887167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122488888199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1074463875 + ... + 1074463988.

It is an arithmetic number, because the mean of its divisors is an integer number (21489278640).

Almost surely, 2^122488888191 is an apocalyptic number.

122488888191 is a deficient number, since it is larger than the sum of its proper divisors (49425340929).

122488888191 is a wasteful number, since it uses less digits than its factorization.

122488888191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148927885.

The product of its digits is 4718592, while the sum is 60.

The spelling of 122488888191 in words is "one hundred twenty-two billion, four hundred eighty-eight million, eight hundred eighty-eight thousand, one hundred ninety-one".