1212330412 has 12 divisors (see below), whose sum is σ = 2122598016. Its totient is φ = 605873840.

The previous prime is 1212330389. The next prime is 1212330421. The reversal of 1212330412 is 2140332121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212330412.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63343 + ... + 80230.

It is an arithmetic number, because the mean of its divisors is an integer number (176883168).

Almost surely, 2^1212330412 is an apocalyptic number.

It is an amenable number.

1212330412 is a deficient number, since it is larger than the sum of its proper divisors (910267604).

1212330412 is a wasteful number, since it uses less digits than its factorization.

1212330412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145688 (or 145686 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1212330412 is about 34818.5354660416. The cubic root of 1212330412 is about 1066.2859005965.

Adding to 1212330412 its reverse (2140332121), we get a palindrome (3352662533).

The spelling of 1212330412 in words is "one billion, two hundred twelve million, three hundred thirty thousand, four hundred twelve".