122242247 has 4 divisors (see below), whose sum is σ = 122264640. Its totient is φ = 122219856.

The previous prime is 122242193. The next prime is 122242259. The reversal of 122242247 is 742242221.

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

It is a cyclic number.

It is not a de Polignac number, because 122242247 - 2¹⁴ = 122225863 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 (122242847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2954 + ... + 15912.

It is an arithmetic number, because the mean of its divisors is an integer number (30566160).

Almost surely, 2^122242247 is an apocalyptic number.

122242247 is a deficient number, since it is larger than the sum of its proper divisors (22393).

122242247 is an equidigital number, since it uses as much as digits as its factorization.

122242247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22392.

The product of its digits is 3584, while the sum is 26.

The square root of 122242247 is about 11056.3215854099. The cubic root of 122242247 is about 496.2956188988.

Subtracting from 122242247 its sum of digits (26), we obtain a palindrome (122242221).

Adding to 122242247 its reverse (742242221), we get a palindrome (864484468).

The spelling of 122242247 in words is "one hundred twenty-two million, two hundred forty-two thousand, two hundred forty-seven".