1142221330 has 32 divisors (see below), whose sum is σ = 2180110464. Its totient is φ = 429386496.

The previous prime is 1142221303. The next prime is 1142221373. The reversal of 1142221330 is 331222411.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1142221298 and 1142221307.

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 15 ways as a sum of consecutive naturals, for example, 121789 + ... + 130831.

It is an arithmetic number, because the mean of its divisors is an integer number (68128452).

Almost surely, 2^1142221330 is an apocalyptic number.

1142221330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1142221330 is a deficient number, since it is larger than the sum of its proper divisors (1037889134).

1142221330 is a wasteful number, since it uses less digits than its factorization.

1142221330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9810.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1142221330 is about 33796.7650818832. The cubic root of 1142221330 is about 1045.3219950481.

Adding to 1142221330 its reverse (331222411), we get a palindrome (1473443741).

The spelling of 1142221330 in words is "one billion, one hundred forty-two million, two hundred twenty-one thousand, three hundred thirty".