122222479 has 2 divisors, whose sum is σ = 122222480. Its totient is φ = 122222478.

The previous prime is 122222473. The next prime is 122222489. The reversal of 122222479 is 974222221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122222479 - 2⁵ = 122222447 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 122222479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122222473) 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 as a sum of consecutive naturals, namely, 61111239 + 61111240.

It is an arithmetic number, because the mean of its divisors is an integer number (61111240).

Almost surely, 2^122222479 is an apocalyptic number.

122222479 is a deficient number, since it is larger than the sum of its proper divisors (1).

122222479 is an equidigital number, since it uses as much as digits as its factorization.

122222479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 122222479 is about 11055.4275810572. The cubic root of 122222479 is about 496.2688651894.

The spelling of 122222479 in words is "one hundred twenty-two million, two hundred twenty-two thousand, four hundred seventy-nine".