1243332212 has 6 divisors (see below), whose sum is σ = 2175831378. Its totient is φ = 621666104.

The previous prime is 1243332197. The next prime is 1243332269. The reversal of 1243332212 is 2122333421.

It can be written as a sum of positive squares in only one way, i.e., 1161719056 + 81613156 = 34084^2 + 9034^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 155416523 + ... + 155416530.

It is an arithmetic number, because the mean of its divisors is an integer number (362638563).

Almost surely, 2^1243332212 is an apocalyptic number.

It is an amenable number.

1243332212 is a deficient number, since it is larger than the sum of its proper divisors (932499166).

1243332212 is a wasteful number, since it uses less digits than its factorization.

1243332212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310833057 (or 310833055 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 1243332212 is about 35260.9162104447. The cubic root of 1243332212 is about 1075.2985540334.

Adding to 1243332212 its reverse (2122333421), we get a palindrome (3365665633).

The spelling of 1243332212 in words is "one billion, two hundred forty-three million, three hundred thirty-two thousand, two hundred twelve".