123221422 has 16 divisors (see below), whose sum is σ = 195350400. Its totient is φ = 58131000.

The previous prime is 123221383. The next prime is 123221437. The reversal of 123221422 is 224122321.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 123221422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3079 + ... + 15997.

It is an arithmetic number, because the mean of its divisors is an integer number (12209400).

Almost surely, 2^123221422 is an apocalyptic number.

123221422 is a deficient number, since it is larger than the sum of its proper divisors (72128978).

123221422 is a wasteful number, since it uses less digits than its factorization.

123221422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13191.

The product of its digits is 384, while the sum is 19.

The square root of 123221422 is about 11100.5144925810. The cubic root of 123221422 is about 497.6172254758.

Adding to 123221422 its reverse (224122321), we get a palindrome (347343743).

The spelling of 123221422 in words is "one hundred twenty-three million, two hundred twenty-one thousand, four hundred twenty-two".