1200321212 has 12 divisors (see below), whose sum is σ = 2120956656. Its totient is φ = 594333600.

The previous prime is 1200321179. The next prime is 1200321247. The reversal of 1200321212 is 2121230021.

It is a happy number.

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 in 3 ways as a sum of consecutive naturals, for example, 1456289 + ... + 1457112.

It is an arithmetic number, because the mean of its divisors is an integer number (176746388).

Almost surely, 2^1200321212 is an apocalyptic number.

It is an amenable number.

1200321212 is a deficient number, since it is larger than the sum of its proper divisors (920635444).

1200321212 is a wasteful number, since it uses less digits than its factorization.

1200321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913508 (or 2913506 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1200321212 is about 34645.6521370287. The cubic root of 1200321212 is about 1062.7533770250.

Adding to 1200321212 its reverse (2121230021), we get a palindrome (3321551233).

The spelling of 1200321212 in words is "one billion, two hundred million, three hundred twenty-one thousand, two hundred twelve".