1212063312 has 40 divisors (see below), whose sum is σ = 3158887104. Its totient is φ = 400443904.

The previous prime is 1212063301. The next prime is 1212063313. The reversal of 1212063312 is 2133602121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212063313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106308 + ... + 117155.

Almost surely, 2^1212063312 is an apocalyptic number.

1212063312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212063312 is an abundant number, since it is smaller than the sum of its proper divisors (1946823792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212063312 is a wasteful number, since it uses less digits than its factorization.

1212063312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223587 (or 223581 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1212063312 is about 34814.6996540255. The cubic root of 1212063312 is about 1066.2075869949.

Adding to 1212063312 its reverse (2133602121), we get a palindrome (3345665433).

The spelling of 1212063312 in words is "one billion, two hundred twelve million, sixty-three thousand, three hundred twelve".