3213222820 has 48 divisors (see below), whose sum is σ = 7231488768. Its totient is φ = 1196173440.

The previous prime is 3213222811. The next prime is 3213222827. The reversal of 3213222820 is 282223123.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3213222827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77376 + ... + 111415.

It is an arithmetic number, because the mean of its divisors is an integer number (150656016).

Almost surely, 2^3213222820 is an apocalyptic number.

It is an amenable number.

3213222820 is an abundant number, since it is smaller than the sum of its proper divisors (4018265948).

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

3213222820 is a wasteful number, since it uses less digits than its factorization.

3213222820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188860 (or 188858 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 3213222820 is about 56685.2963298244. The cubic root of 3213222820 is about 1475.6395303905.

Adding to 3213222820 its reverse (282223123), we get a palindrome (3495445943).

The spelling of 3213222820 in words is "three billion, two hundred thirteen million, two hundred twenty-two thousand, eight hundred twenty".