122345221 has 4 divisors (see below), whose sum is σ = 122539744. Its totient is φ = 122150700.

The previous prime is 122345207. The next prime is 122345231. The reversal of 122345221 is 122543221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122543221 = 179 ⋅684599.

It is a cyclic number.

It is not a de Polignac number, because 122345221 - 2⁹ = 122344709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122345192 and 122345201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122345231) 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, 96315 + ... + 97576.

It is an arithmetic number, because the mean of its divisors is an integer number (30634936).

Almost surely, 2^122345221 is an apocalyptic number.

It is an amenable number.

122345221 is a deficient number, since it is larger than the sum of its proper divisors (194523).

122345221 is an equidigital number, since it uses as much as digits as its factorization.

122345221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194522.

The product of its digits is 960, while the sum is 22.

The square root of 122345221 is about 11060.9773980422. The cubic root of 122345221 is about 496.4349357144.

Adding to 122345221 its reverse (122543221), we get a palindrome (244888442).

The spelling of 122345221 in words is "one hundred twenty-two million, three hundred forty-five thousand, two hundred twenty-one".