1331202212 has 6 divisors (see below), whose sum is σ = 2329603878. Its totient is φ = 665601104.

The previous prime is 1331202209. The next prime is 1331202247. The reversal of 1331202212 is 2122021331.

It can be written as a sum of positive squares in only one way, i.e., 1182947236 + 148254976 = 34394^2 + 12176^2 .

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 as a sum of consecutive naturals, namely, 166400273 + ... + 166400280.

It is an arithmetic number, because the mean of its divisors is an integer number (388267313).

Almost surely, 2^1331202212 is an apocalyptic number.

It is an amenable number.

1331202212 is a deficient number, since it is larger than the sum of its proper divisors (998401666).

1331202212 is a wasteful number, since it uses less digits than its factorization.

1331202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332800557 (or 332800555 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1331202212 is about 36485.6439164776. The cubic root of 1331202212 is about 1100.0557029643.

Adding to 1331202212 its reverse (2122021331), we get a palindrome (3453223543).

The spelling of 1331202212 in words is "one billion, three hundred thirty-one million, two hundred two thousand, two hundred twelve".