122232191 has 4 divisors (see below), whose sum is σ = 123704952. Its totient is φ = 120759432.

The previous prime is 122232181. The next prime is 122232221. The reversal of 122232191 is 191232221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122232191 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 (122232161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 736256 + ... + 736421.

It is an arithmetic number, because the mean of its divisors is an integer number (30926238).

Almost surely, 2^122232191 is an apocalyptic number.

122232191 is a deficient number, since it is larger than the sum of its proper divisors (1472761).

122232191 is an equidigital number, since it uses as much as digits as its factorization.

122232191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472760.

The product of its digits is 432, while the sum is 23.

The square root of 122232191 is about 11055.8668135972. The cubic root of 122232191 is about 496.2820096224.

The spelling of 122232191 in words is "one hundred twenty-two million, two hundred thirty-two thousand, one hundred ninety-one".