1323201212 has 24 divisors (see below), whose sum is σ = 2428280400. Its totient is φ = 630032256.

The previous prime is 1323201197. The next prime is 1323201223. The reversal of 1323201212 is 2121023231.

It is a super-2 number, since 2×1323201212² = 3501722894876537888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69662 + ... + 86597.

It is an arithmetic number, because the mean of its divisors is an integer number (101178350).

Almost surely, 2^1323201212 is an apocalyptic number.

It is an amenable number.

1323201212 is a deficient number, since it is larger than the sum of its proper divisors (1105079188).

1323201212 is a wasteful number, since it uses less digits than its factorization.

1323201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156365 (or 156363 counting only the distinct ones).

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

The square root of 1323201212 is about 36375.8328014631. The cubic root of 1323201212 is about 1097.8473637171.

Adding to 1323201212 its reverse (2121023231), we get a palindrome (3444224443).

The spelling of 1323201212 in words is "one billion, three hundred twenty-three million, two hundred one thousand, two hundred twelve".