3221020032 has 64 divisors (see below), whose sum is σ = 8831861760. Its totient is φ = 1039034880.

The previous prime is 3221020021. The next prime is 3221020043. The reversal of 3221020032 is 2300201223.

It is an interprime number because it is at equal distance from previous prime (3221020021) and next prime (3221020043).

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 3221019993 and 3221020020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123388 + ... + 147195.

It is an arithmetic number, because the mean of its divisors is an integer number (137997840).

Almost surely, 2^3221020032 is an apocalyptic number.

3221020032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3221020032 is an abundant number, since it is smaller than the sum of its proper divisors (5610841728).

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

3221020032 is a wasteful number, since it uses less digits than its factorization.

3221020032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270631 (or 270619 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 3221020032 is about 56754.0309757818. The cubic root of 3221020032 is about 1476.8321626997.

Adding to 3221020032 its reverse (2300201223), we get a palindrome (5521221255).

The spelling of 3221020032 in words is "three billion, two hundred twenty-one million, twenty thousand, thirty-two".