122191401 has 4 divisors (see below), whose sum is σ = 162921872. Its totient is φ = 81460932.

The previous prime is 122191369. The next prime is 122191403. The reversal of 122191401 is 104191221.

It is a happy number.

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 not a de Polignac number, because 122191401 - 2⁵ = 122191369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122191403) 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, 20365231 + ... + 20365236.

It is an arithmetic number, because the mean of its divisors is an integer number (40730468).

Almost surely, 2^122191401 is an apocalyptic number.

It is an amenable number.

122191401 is a deficient number, since it is larger than the sum of its proper divisors (40730471).

122191401 is an equidigital number, since it uses as much as digits as its factorization.

122191401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40730470.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 122191401 is about 11054.0219377383. The cubic root of 122191401 is about 496.2267988654.

The spelling of 122191401 in words is "one hundred twenty-two million, one hundred ninety-one thousand, four hundred one".