122222224 has 10 divisors (see below), whose sum is σ = 236805590. Its totient is φ = 61111104.

The previous prime is 122222209. The next prime is 122222239. The reversal of 122222224 is 422222221.

It is an interprime number because it is at equal distance from previous prime (122222209) and next prime (122222239).

It can be written as a sum of positive squares in only one way, i.e., 108826624 + 13395600 = 10432^2 + 3660^2 .

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 10 and base 14.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3819429 + ... + 3819460.

It is an arithmetic number, because the mean of its divisors is an integer number (23680559).

Almost surely, 2^122222224 is an apocalyptic number.

It is an amenable number.

122222224 is a deficient number, since it is larger than the sum of its proper divisors (114583366).

122222224 is an equidigital number, since it uses as much as digits as its factorization.

122222224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7638897 (or 7638891 counting only the distinct ones).

The product of its digits is 512, while the sum is 19.

The square root of 122222224 is about 11055.4160482544. The cubic root of 122222224 is about 496.2685200574.

Adding to 122222224 its reverse (422222221), we get a palindrome (544444445).

The spelling of 122222224 in words is "one hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-four".