1142221322 has 16 divisors (see below), whose sum is σ = 1887598944. Its totient is φ = 514050000.

The previous prime is 1142221303. The next prime is 1142221373. The reversal of 1142221322 is 2231222411.

It is a junction number, because it is equal to n+sod(n) for n = 1142221294 and 1142221303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254804 + ... + 259247.

It is an arithmetic number, because the mean of its divisors is an integer number (117974934).

Almost surely, 2^1142221322 is an apocalyptic number.

1142221322 is a deficient number, since it is larger than the sum of its proper divisors (745377622).

1142221322 is a wasteful number, since it uses less digits than its factorization.

1142221322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514165.

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

The square root of 1142221322 is about 33796.7649635287. The cubic root of 1142221322 is about 1045.3219926077.

Adding to 1142221322 its reverse (2231222411), we get a palindrome (3373443733).

The spelling of 1142221322 in words is "one billion, one hundred forty-two million, two hundred twenty-one thousand, three hundred twenty-two".