3221084020 has 48 divisors (see below), whose sum is σ = 8433387648. Its totient is φ = 1003973760.

The previous prime is 3221084017. The next prime is 3221084039. The reversal of 3221084020 is 204801223.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 3221083982 and 3221084000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1044267 + ... + 1047346.

It is an arithmetic number, because the mean of its divisors is an integer number (175695576).

Almost surely, 2^3221084020 is an apocalyptic number.

It is an amenable number.

3221084020 is an abundant number, since it is smaller than the sum of its proper divisors (5212303628).

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

3221084020 is a wasteful number, since it uses less digits than its factorization.

3221084020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091640 (or 2091638 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 3221084020 is about 56754.5947038652. The cubic root of 3221084020 is about 1476.8419420977.

Adding to 3221084020 its reverse (204801223), we get a palindrome (3425885243).

The spelling of 3221084020 in words is "three billion, two hundred twenty-one million, eighty-four thousand, twenty".