3221134021 has 6 divisors (see below), whose sum is σ = 3747033510. Its totient is φ = 2760971976.

The previous prime is 3221133991. The next prime is 3221134027. The reversal of 3221134021 is 1204311223.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3154057921 + 67076100 = 56161^2 + 8190^2 .

It is not a de Polignac number, because 3221134021 - 2²³ = 3212745413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3221134021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221134027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32868666 + ... + 32868763.

It is an arithmetic number, because the mean of its divisors is an integer number (624505585).

Almost surely, 2^3221134021 is an apocalyptic number.

It is an amenable number.

3221134021 is a deficient number, since it is larger than the sum of its proper divisors (525899489).

3221134021 is an equidigital number, since it uses as much as digits as its factorization.

3221134021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65737443 (or 65737436 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3221134021 is about 56755.0352039359. The cubic root of 3221134021 is about 1476.8495837479.

Adding to 3221134021 its reverse (1204311223), we get a palindrome (4425445244).

The spelling of 3221134021 in words is "three billion, two hundred twenty-one million, one hundred thirty-four thousand, twenty-one".