1142444222 has 4 divisors (see below), whose sum is σ = 1713666336. Its totient is φ = 571222110.

The previous prime is 1142444159. The next prime is 1142444231. The reversal of 1142444222 is 2224442411.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1142444191 and 1142444200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285611054 + ... + 285611057.

It is an arithmetic number, because the mean of its divisors is an integer number (428416584).

Almost surely, 2^1142444222 is an apocalyptic number.

1142444222 is a deficient number, since it is larger than the sum of its proper divisors (571222114).

1142444222 is an equidigital number, since it uses as much as digits as its factorization.

1142444222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571222113.

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

The square root of 1142444222 is about 33800.0624555636. The cubic root of 1142444222 is about 1045.3899850107.

Adding to 1142444222 its reverse (2224442411), we get a palindrome (3366886633).

The spelling of 1142444222 in words is "one billion, one hundred forty-two million, four hundred forty-four thousand, two hundred twenty-two".