3323212021 has 2 divisors, whose sum is σ = 3323212022. Its totient is φ = 3323212020.

The previous prime is 3323212019. The next prime is 3323212027. The reversal of 3323212021 is 1202123233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3258811396 + 64400625 = 57086^2 + 8025^2 .

It is an emirp because it is prime and its reverse (1202123233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3323212021 - 2¹ = 3323212019 is a prime.

It is a super-2 number, since 2×3323212021² = 22087476273037808882, which contains 22 as substring.

Together with 3323212019, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3323212021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3323212027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1661606010 + 1661606011.

It is an arithmetic number, because the mean of its divisors is an integer number (1661606011).

Almost surely, 2^3323212021 is an apocalyptic number.

It is an amenable number.

3323212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3323212021 is an equidigital number, since it uses as much as digits as its factorization.

3323212021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3323212021 is about 57647.3071443931. The cubic root of 3323212021 is about 1492.2881260966.

Adding to 3323212021 its reverse (1202123233), we get a palindrome (4525335254).

The spelling of 3323212021 in words is "three billion, three hundred twenty-three million, two hundred twelve thousand, twenty-one".