3212421321 has 16 divisors (see below), whose sum is σ = 4506033600. Its totient is φ = 2032715328.

The previous prime is 3212421313. The next prime is 3212421323. The reversal of 3212421321 is 1231242123.

It is not a de Polignac number, because 3212421321 - 2³ = 3212421313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3212421323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307786 + ... + 318051.

It is an arithmetic number, because the mean of its divisors is an integer number (281627100).

Almost surely, 2^3212421321 is an apocalyptic number.

It is an amenable number.

3212421321 is a deficient number, since it is larger than the sum of its proper divisors (1293612279).

3212421321 is a wasteful number, since it uses less digits than its factorization.

3212421321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625928.

The product of its digits is 576, while the sum is 21.

The square root of 3212421321 is about 56678.2261631396. The cubic root of 3212421321 is about 1475.5168267970.

Adding to 3212421321 its reverse (1231242123), we get a palindrome (4443663444).

The spelling of 3212421321 in words is "three billion, two hundred twelve million, four hundred twenty-one thousand, three hundred twenty-one".