3321021999 has 4 divisors (see below), whose sum is σ = 4428029336. Its totient is φ = 2214014664.

The previous prime is 3321021943. The next prime is 3321022013. The reversal of 3321021999 is 9991201233.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3321021999 - 2¹¹ = 3321019951 is a prime.

It is a super-2 number, since 2×3321021999² = 22058374235683912002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3321020999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553503664 + ... + 553503669.

It is an arithmetic number, because the mean of its divisors is an integer number (1107007334).

Almost surely, 2^3321021999 is an apocalyptic number.

3321021999 is a deficient number, since it is larger than the sum of its proper divisors (1107007337).

3321021999 is a wasteful number, since it uses less digits than its factorization.

3321021999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107007336.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 3321021999 is about 57628.3090069455. The cubic root of 3321021999 is about 1491.9602443185.

The spelling of 3321021999 in words is "three billion, three hundred twenty-one million, twenty-one thousand, nine hundred ninety-nine".