3213201222 has 144 divisors (see below), whose sum is σ = 8783873280. Its totient is φ = 830950560.

The previous prime is 3213201221. The next prime is 3213201227. The reversal of 3213201222 is 2221023123.

3213201222 is a `hidden beast` number, since 321 + 320 + 1 + 2 + 22 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 3213201195 and 3213201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213201221) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6387823 + ... + 6388325.

It is an arithmetic number, because the mean of its divisors is an integer number (60999120).

Almost surely, 2^3213201222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3213201222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4391936640).

3213201222 is an abundant number, since it is smaller than the sum of its proper divisors (5570672058).

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

3213201222 is a wasteful number, since it uses less digits than its factorization.

3213201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959 (or 945 counting only the distinct ones).

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

The square root of 3213201222 is about 56685.1058215472. The cubic root of 3213201222 is about 1475.6362241633.

Adding to 3213201222 its reverse (2221023123), we get a palindrome (5434224345).

The spelling of 3213201222 in words is "three billion, two hundred thirteen million, two hundred one thousand, two hundred twenty-two".