3222201312 has 144 divisors (see below), whose sum is σ = 10133808048. Its totient is φ = 962979840.

The previous prime is 3222201217. The next prime is 3222201313. The reversal of 3222201312 is 2131022223.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3222201313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 224298 + ... + 238230.

It is an arithmetic number, because the mean of its divisors is an integer number (70373667).

Almost surely, 2^3222201312 is an apocalyptic number.

3222201312 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 3222201312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5066904024).

3222201312 is an abundant number, since it is smaller than the sum of its proper divisors (6911606736).

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

3222201312 is a wasteful number, since it uses less digits than its factorization.

3222201312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14033 (or 14022 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3222201312 is about 56764.4370358766. The cubic root of 3222201312 is about 1477.0126789189.

Adding to 3222201312 its reverse (2131022223), we get a palindrome (5353223535).

Subtracting from 3222201312 its reverse (2131022223), we obtain a square (1091179089 = 33033²).

The spelling of 3222201312 in words is "three billion, two hundred twenty-two million, two hundred one thousand, three hundred twelve".