122322251 has 4 divisors (see below), whose sum is σ = 124630272. Its totient is φ = 120014232.

The previous prime is 122322227. The next prime is 122322271. The reversal of 122322251 is 152223221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152223221 = 1193 ⋅127597.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122322251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122322271) 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, 1153931 + ... + 1154036.

It is an arithmetic number, because the mean of its divisors is an integer number (31157568).

Almost surely, 2^122322251 is an apocalyptic number.

122322251 is a deficient number, since it is larger than the sum of its proper divisors (2308021).

122322251 is an equidigital number, since it uses as much as digits as its factorization.

122322251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308020.

The product of its digits is 480, while the sum is 20.

The square root of 122322251 is about 11059.9390142984. The cubic root of 122322251 is about 496.4038656432.

Adding to 122322251 its reverse (152223221), we get a palindrome (274545472).

The spelling of 122322251 in words is "one hundred twenty-two million, three hundred twenty-two thousand, two hundred fifty-one".