122222446 has 4 divisors (see below), whose sum is σ = 183333672. Its totient is φ = 61111222.

The previous prime is 122222413. The next prime is 122222447. The reversal of 122222446 is 644222221.

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

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 122222446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222447) 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, 30555610 + ... + 30555613.

It is an arithmetic number, because the mean of its divisors is an integer number (45833418).

Almost surely, 2^122222446 is an apocalyptic number.

122222446 is a deficient number, since it is larger than the sum of its proper divisors (61111226).

122222446 is an equidigital number, since it uses as much as digits as its factorization.

122222446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61111225.

The product of its digits is 3072, while the sum is 25.

The square root of 122222446 is about 11055.4260885775. The cubic root of 122222446 is about 496.2688205253.

Adding to 122222446 its reverse (644222221), we get a palindrome (766444667).

The spelling of 122222446 in words is "one hundred twenty-two million, two hundred twenty-two thousand, four hundred forty-six".