3221003021 has 8 divisors (see below), whose sum is σ = 3301261920. Its totient is φ = 3140987472.

The previous prime is 3221003003. The next prime is 3221003047. The reversal of 3221003021 is 1203001223.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3221003021 - 2²² = 3216808717 is a prime.

It is a super-2 number, since 2×3221003021² = 20749720922582252882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221002987 and 3221003005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221003321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33890 + ... + 87123.

It is an arithmetic number, because the mean of its divisors is an integer number (412657740).

Almost surely, 2^3221003021 is an apocalyptic number.

It is an amenable number.

3221003021 is a deficient number, since it is larger than the sum of its proper divisors (80258899).

3221003021 is a wasteful number, since it uses less digits than its factorization.

3221003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121675.

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

The square root of 3221003021 is about 56753.8811095770. The cubic root of 3221003021 is about 1476.8295628570.

Adding to 3221003021 its reverse (1203001223), we get a palindrome (4424004244).

The spelling of 3221003021 in words is "three billion, two hundred twenty-one million, three thousand, twenty-one".