3321443021 has 12 divisors (see below), whose sum is σ = 3598277760. Its totient is φ = 3064510800.

The previous prime is 3321443003. The next prime is 3321443039. The reversal of 3321443021 is 1203441233.

It is an interprime number because it is at equal distance from previous prime (3321443003) and next prime (3321443039).

It is a de Polignac number, because none of the positive numbers 2^k-3321443021 is a prime.

It is a super-5 number, since 5×3321443021⁵ (a number of 49 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3321443621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 564746 + ... + 570596.

It is an arithmetic number, because the mean of its divisors is an integer number (299856480).

Almost surely, 2^3321443021 is an apocalyptic number.

It is an amenable number.

3321443021 is a deficient number, since it is larger than the sum of its proper divisors (276834739).

3321443021 is a wasteful number, since it uses less digits than its factorization.

3321443021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9236 (or 9223 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3321443021 is about 57631.9618007230. The cubic root of 3321443021 is about 1492.0232893233.

Adding to 3321443021 its reverse (1203441233), we get a palindrome (4524884254).

The spelling of 3321443021 in words is "three billion, three hundred twenty-one million, four hundred forty-three thousand, twenty-one".