3321032421 has 16 divisors (see below), whose sum is σ = 5197395584. Its totient is φ = 1846442304.

The previous prime is 3321032389. The next prime is 3321032441. The reversal of 3321032421 is 1242301233.

It is not a de Polignac number, because 3321032421 - 2⁵ = 3321032389 is a prime.

It is a super-2 number, since 2×3321032421² = 22058512682666242482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3321032441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2136310 + ... + 2137863.

It is an arithmetic number, because the mean of its divisors is an integer number (324837224).

Almost surely, 2^3321032421 is an apocalyptic number.

It is an amenable number.

3321032421 is a deficient number, since it is larger than the sum of its proper divisors (1876363163).

3321032421 is a wasteful number, since it uses less digits than its factorization.

3321032421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4274220.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3321032421 is about 57628.3994311832. The cubic root of 3321032421 is about 1491.9618050020.

Adding to 3321032421 its reverse (1242301233), we get a palindrome (4563333654).

The spelling of 3321032421 in words is "three billion, three hundred twenty-one million, thirty-two thousand, four hundred twenty-one".