122119989 has 4 divisors (see below), whose sum is σ = 162826656. Its totient is φ = 81413324.

The previous prime is 122119969. The next prime is 122120023. The reversal of 122119989 is 989911221.

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 not a de Polignac number, because 122119989 - 2¹⁵ = 122087221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122119989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122119909) 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, 20353329 + ... + 20353334.

It is an arithmetic number, because the mean of its divisors is an integer number (40706664).

Almost surely, 2^122119989 is an apocalyptic number.

It is an amenable number.

122119989 is a deficient number, since it is larger than the sum of its proper divisors (40706667).

122119989 is an equidigital number, since it uses as much as digits as its factorization.

122119989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40706666.

The product of its digits is 23328, while the sum is 42.

The square root of 122119989 is about 11050.7913291311. The cubic root of 122119989 is about 496.1301105183.

The spelling of 122119989 in words is "one hundred twenty-two million, one hundred nineteen thousand, nine hundred eighty-nine".