4221446620 has 12 divisors (see below), whose sum is σ = 8865037944. Its totient is φ = 1688578640.

The previous prime is 4221446617. The next prime is 4221446653. The reversal of 4221446620 is 266441224.

It is a happy number.

It is a super-2 number, since 2×4221446620² = 35641223131018848800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105536146 + ... + 105536185.

It is an arithmetic number, because the mean of its divisors is an integer number (738753162).

Almost surely, 2^4221446620 is an apocalyptic number.

It is an amenable number.

4221446620 is an abundant number, since it is smaller than the sum of its proper divisors (4643591324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4221446620 is a wasteful number, since it uses less digits than its factorization.

4221446620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211072340 (or 211072338 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 4221446620 is about 64972.6605581147. The cubic root of 4221446620 is about 1616.1702222210.

Adding to 4221446620 its reverse (266441224), we get a palindrome (4487887844).

The spelling of 4221446620 in words is "four billion, two hundred twenty-one million, four hundred forty-six thousand, six hundred twenty".