4233022421 has 2 divisors, whose sum is σ = 4233022422. Its totient is φ = 4233022420.

The previous prime is 4233022403. The next prime is 4233022427. The reversal of 4233022421 is 1242203324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2936014225 + 1297008196 = 54185^2 + 36014^2 .

It is a cyclic number.

It is not a de Polignac number, because 4233022421 - 2¹⁸ = 4232760277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4233022427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2116511210 + 2116511211.

It is an arithmetic number, because the mean of its divisors is an integer number (2116511211).

Almost surely, 2^4233022421 is an apocalyptic number.

It is an amenable number.

4233022421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4233022421 is an equidigital number, since it uses as much as digits as its factorization.

4233022421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4233022421 is about 65061.6816644021. The cubic root of 4233022421 is about 1617.6461294274.

Adding to 4233022421 its reverse (1242203324), we get a palindrome (5475225745).

The spelling of 4233022421 in words is "four billion, two hundred thirty-three million, twenty-two thousand, four hundred twenty-one".