3224222021 has 2 divisors, whose sum is σ = 3224222022. Its totient is φ = 3224222020.

The previous prime is 3224221993. The next prime is 3224222033. The reversal of 3224222021 is 1202224223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2333856100 + 890365921 = 48310^2 + 29839^2 .

It is an emirp because it is prime and its reverse (1202224223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3224222021 - 2¹⁰ = 3224220997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3224221984 and 3224222002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3224222051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1612111010 + 1612111011.

It is an arithmetic number, because the mean of its divisors is an integer number (1612111011).

Almost surely, 2^3224222021 is an apocalyptic number.

It is an amenable number.

3224222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3224222021 is an equidigital number, since it uses as much as digits as its factorization.

3224222021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 3224222021 is about 56782.2333217002. The cubic root of 3224222021 is about 1477.3213694524.

Adding to 3224222021 its reverse (1202224223), we get a palindrome (4426446244).

The spelling of 3224222021 in words is "three billion, two hundred twenty-four million, two hundred twenty-two thousand, twenty-one".