4223326621 has 2 divisors, whose sum is σ = 4223326622. Its totient is φ = 4223326620.

The previous prime is 4223326589. The next prime is 4223326661. The reversal of 4223326621 is 1266233224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2976248025 + 1247078596 = 54555^2 + 35314^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223326621 - 2⁵ = 4223326589 is a prime.

It is a super-3 number, since 3×4223326621³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4223326661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111663310 + 2111663311.

It is an arithmetic number, because the mean of its divisors is an integer number (2111663311).

Almost surely, 2^4223326621 is an apocalyptic number.

It is an amenable number.

4223326621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223326621 is an equidigital number, since it uses as much as digits as its factorization.

4223326621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 31.

The square root of 4223326621 is about 64987.1265790387. The cubic root of 4223326621 is about 1616.4101044994.

Adding to 4223326621 its reverse (1266233224), we get a palindrome (5489559845).

The spelling of 4223326621 in words is "four billion, two hundred twenty-three million, three hundred twenty-six thousand, six hundred twenty-one".