1143122212 has 6 divisors (see below), whose sum is σ = 2000463878. Its totient is φ = 571561104.

The previous prime is 1143122207. The next prime is 1143122219. The reversal of 1143122212 is 2122213411.

It can be written as a sum of positive squares in only one way, i.e., 1077414976 + 65707236 = 32824^2 + 8106^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1143122212.

It is not an unprimeable number, because it can be changed into a prime (1143122219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142890273 + ... + 142890280.

Almost surely, 2^1143122212 is an apocalyptic number.

It is an amenable number.

1143122212 is a deficient number, since it is larger than the sum of its proper divisors (857341666).

1143122212 is a wasteful number, since it uses less digits than its factorization.

1143122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285780557 (or 285780555 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 1143122212 is about 33810.0903873385. The cubic root of 1143122212 is about 1045.5967416534.

Adding to 1143122212 its reverse (2122213411), we get a palindrome (3265335623).

The spelling of 1143122212 in words is "one billion, one hundred forty-three million, one hundred twenty-two thousand, two hundred twelve".