3212213312 has 224 divisors, whose sum is σ = 8302264320. Its totient is φ = 1196881920.

The previous prime is 3212213309. The next prime is 3212213339. The reversal of 3212213312 is 2133122123.

It is a tau number, because it is divible by the number of its divisors (224).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14404433 + ... + 14404655.

It is an arithmetic number, because the mean of its divisors is an integer number (37063680).

Almost surely, 2^3212213312 is an apocalyptic number.

3212213312 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 3212213312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4151132160).

3212213312 is an abundant number, since it is smaller than the sum of its proper divisors (5090051008).

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

3212213312 is a wasteful number, since it uses less digits than its factorization.

3212213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 359 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 3212213312 is about 56676.3911342280. The cubic root of 3212213312 is about 1475.4849788155.

Adding to 3212213312 its reverse (2133122123), we get a palindrome (5345335435).

The spelling of 3212213312 in words is "three billion, two hundred twelve million, two hundred thirteen thousand, three hundred twelve".