3223021312 has 144 divisors (see below), whose sum is σ = 7600671232. Its totient is φ = 1335398400.

The previous prime is 3223021309. The next prime is 3223021337. The reversal of 3223021312 is 2131203223.

It is a self number, because there is not a number n which added to its sum of digits gives 3223021312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11635318 + ... + 11635594.

Almost surely, 2^3223021312 is an apocalyptic number.

3223021312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3223021312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3800335616).

3223021312 is an abundant number, since it is smaller than the sum of its proper divisors (4377649920).

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

3223021312 is a wasteful number, since it uses less digits than its factorization.

3223021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3223021312 is about 56771.6594085464. The cubic root of 3223021312 is about 1477.1379605255.

Adding to 3223021312 its reverse (2131203223), we get a palindrome (5354224535).

The spelling of 3223021312 in words is "three billion, two hundred twenty-three million, twenty-one thousand, three hundred twelve".