1122443212 has 12 divisors (see below), whose sum is σ = 2142846216. Its totient is φ = 510201440.

The previous prime is 1122443191. The next prime is 1122443213. The reversal of 1122443212 is 2123442211.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1122443213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12754993 + ... + 12755080.

It is an arithmetic number, because the mean of its divisors is an integer number (178570518).

Almost surely, 2^1122443212 is an apocalyptic number.

It is an amenable number.

1122443212 is a deficient number, since it is larger than the sum of its proper divisors (1020403004).

1122443212 is a wasteful number, since it uses less digits than its factorization.

1122443212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25510088 (or 25510086 counting only the distinct ones).

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

The square root of 1122443212 is about 33502.8836370841. The cubic root of 1122443212 is about 1039.2534126452.

Adding to 1122443212 its reverse (2123442211), we get a palindrome (3245885423).

The spelling of 1122443212 in words is "one billion, one hundred twenty-two million, four hundred forty-three thousand, two hundred twelve".