122119191 has 8 divisors (see below), whose sum is σ = 180917360. Its totient is φ = 81412776.

The previous prime is 122119189. The next prime is 122119229. The reversal of 122119191 is 191911221.

It is not a de Polignac number, because 122119191 - 2¹ = 122119189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4522933 = 122119191 / (1 + 2 + 2 + 1 + 1 + 9 + 1 + 9 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122119171) 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, 2261440 + ... + 2261493.

It is an arithmetic number, because the mean of its divisors is an integer number (22614670).

Almost surely, 2^122119191 is an apocalyptic number.

122119191 is a deficient number, since it is larger than the sum of its proper divisors (58798169).

122119191 is an equidigital number, since it uses as much as digits as its factorization.

122119191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522942 (or 4522936 counting only the distinct ones).

The product of its digits is 324, while the sum is 27.

The square root of 122119191 is about 11050.7552230605. The cubic root of 122119191 is about 496.1290298525.

The spelling of 122119191 in words is "one hundred twenty-two million, one hundred nineteen thousand, one hundred ninety-one".