3221031020 has 24 divisors (see below), whose sum is σ = 6765937584. Its totient is φ = 1288074816.

The previous prime is 3221030959. The next prime is 3221031059. The reversal of 3221031020 is 201301223.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3221030986 and 3221031004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65882 + ... + 103838.

It is an arithmetic number, because the mean of its divisors is an integer number (281914066).

Almost surely, 2^3221031020 is an apocalyptic number.

It is an amenable number.

3221031020 is an abundant number, since it is smaller than the sum of its proper divisors (3544906564).

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

3221031020 is a wasteful number, since it uses less digits than its factorization.

3221031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42209 (or 42207 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3221031020 is about 56754.1277793959. The cubic root of 3221031020 is about 1476.8338420242.

Adding to 3221031020 its reverse (201301223), we get a palindrome (3422332243).

The spelling of 3221031020 in words is "three billion, two hundred twenty-one million, thirty-one thousand, twenty".