1131442222 has 16 divisors (see below), whose sum is σ = 1727146512. Its totient is φ = 555802560.

The previous prime is 1131442217. The next prime is 1131442237. The reversal of 1131442222 is 2222441311.

It is a junction number, because it is equal to n+sod(n) for n = 1131442193 and 1131442202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11218 + ... + 48874.

It is an arithmetic number, because the mean of its divisors is an integer number (107946657).

Almost surely, 2^1131442222 is an apocalyptic number.

1131442222 is a deficient number, since it is larger than the sum of its proper divisors (595704290).

1131442222 is a wasteful number, since it uses less digits than its factorization.

1131442222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37923.

The product of its digits is 768, while the sum is 22.

The square root of 1131442222 is about 33636.9175460535. The cubic root of 1131442222 is about 1042.0233728792.

Adding to 1131442222 its reverse (2222441311), we get a palindrome (3353883533).

The spelling of 1131442222 in words is "one billion, one hundred thirty-one million, four hundred forty-two thousand, two hundred twenty-two".