4221446653 has 2 divisors, whose sum is σ = 4221446654. Its totient is φ = 4221446652.

The previous prime is 4221446617. The next prime is 4221446659. The reversal of 4221446653 is 3566441224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2659774329 + 1561672324 = 51573^2 + 39518^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221446653 - 2¹³ = 4221438461 is a prime.

It is a super-2 number, since 2×4221446653² = 35641223688249804818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221446659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110723326 + 2110723327.

It is an arithmetic number, because the mean of its divisors is an integer number (2110723327).

Almost surely, 2^4221446653 is an apocalyptic number.

It is an amenable number.

4221446653 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221446653 is an equidigital number, since it uses as much as digits as its factorization.

4221446653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 37.

The square root of 4221446653 is about 64972.6608120677. The cubic root of 4221446653 is about 1616.1702264324.

Adding to 4221446653 its reverse (3566441224), we get a palindrome (7787887877).

The spelling of 4221446653 in words is "four billion, two hundred twenty-one million, four hundred forty-six thousand, six hundred fifty-three".