1243382212 has 6 divisors (see below), whose sum is σ = 2175918878. Its totient is φ = 621691104.

The previous prime is 1243382201. The next prime is 1243382219. The reversal of 1243382212 is 2122833421.

It can be written as a sum of positive squares in only one way, i.e., 760877056 + 482505156 = 27584^2 + 21966^2 .

It is not an unprimeable number, because it can be changed into a prime (1243382219) by changing a digit.

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 as a sum of consecutive naturals, namely, 155422773 + ... + 155422780.

Almost surely, 2^1243382212 is an apocalyptic number.

It is an amenable number.

1243382212 is a deficient number, since it is larger than the sum of its proper divisors (932536666).

1243382212 is a wasteful number, since it uses less digits than its factorization.

1243382212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310845557 (or 310845555 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 1243382212 is about 35261.6252036119. The cubic root of 1243382212 is about 1075.3129680429.

The spelling of 1243382212 in words is "one billion, two hundred forty-three million, three hundred eighty-two thousand, two hundred twelve".