3222202021 has 2 divisors, whose sum is σ = 3222202022. Its totient is φ = 3222202020.

The previous prime is 3222202019. The next prime is 3222202073. The reversal of 3222202021 is 1202022223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2266712100 + 955489921 = 47610^2 + 30911^2 .

It is an emirp because it is prime and its reverse (1202022223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3222202021 - 2¹ = 3222202019 is a prime.

Together with 3222202019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 3222201986 and 3222202004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3222202421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611101010 + 1611101011.

It is an arithmetic number, because the mean of its divisors is an integer number (1611101011).

Almost surely, 2^3222202021 is an apocalyptic number.

It is an amenable number.

3222202021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3222202021 is an equidigital number, since it uses as much as digits as its factorization.

3222202021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 3222202021 is about 56764.4432809836. The cubic root of 3222202021 is about 1477.0127872508.

Adding to 3222202021 its reverse (1202022223), we get a palindrome (4424224244).

The spelling of 3222202021 in words is "three billion, two hundred twenty-two million, two hundred two thousand, twenty-one".