1222144442 has 16 divisors (see below), whose sum is σ = 1868811264. Its totient is φ = 599298000.

The previous prime is 1222144423. The next prime is 1222144453. The reversal of 1222144442 is 2444412221.

It is a happy number.

It is a super-2 number, since 2×1222144442² = 2987274074222982728, which contains 22 as substring.

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, 4592 + ... + 49652.

It is an arithmetic number, because the mean of its divisors is an integer number (116800704).

Almost surely, 2^1222144442 is an apocalyptic number.

1222144442 is a deficient number, since it is larger than the sum of its proper divisors (646666822).

1222144442 is a wasteful number, since it uses less digits than its factorization.

1222144442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45325.

The product of its digits is 4096, while the sum is 26.

The square root of 1222144442 is about 34959.1825133255. The cubic root of 1222144442 is about 1069.1554292690.

Adding to 1222144442 its reverse (2444412221), we get a palindrome (3666556663).

The spelling of 1222144442 in words is "one billion, two hundred twenty-two million, one hundred forty-four thousand, four hundred forty-two".