1322221142 has 16 divisors (see below), whose sum is σ = 2164654800. Its totient is φ = 600726240.

The previous prime is 1322221123. The next prime is 1322221151. The reversal of 1322221142 is 2411222231.

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, 37784 + ... + 63812.

It is an arithmetic number, because the mean of its divisors is an integer number (135290925).

Almost surely, 2^1322221142 is an apocalyptic number.

1322221142 is a deficient number, since it is larger than the sum of its proper divisors (842433658).

1322221142 is a wasteful number, since it uses less digits than its factorization.

1322221142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28351.

The product of its digits is 384, while the sum is 20.

The square root of 1322221142 is about 36362.3588618780. The cubic root of 1322221142 is about 1097.5762452067.

Adding to 1322221142 its reverse (2411222231), we get a palindrome (3733443373).

The spelling of 1322221142 in words is "one billion, three hundred twenty-two million, two hundred twenty-one thousand, one hundred forty-two".