4221246571 has 4 divisors (see below), whose sum is σ = 4221421792. Its totient is φ = 4221071352.

The previous prime is 4221246563. The next prime is 4221246577. The reversal of 4221246571 is 1756421224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4221246571 - 2³ = 4221246563 is a prime.

It is a super-2 number, since 2×4221246571² = 35637845226358516082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4221246577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44355 + ... + 102028.

It is an arithmetic number, because the mean of its divisors is an integer number (1055355448).

Almost surely, 2^4221246571 is an apocalyptic number.

4221246571 is a deficient number, since it is larger than the sum of its proper divisors (175221).

4221246571 is a wasteful number, since it uses less digits than its factorization.

4221246571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175220.

The product of its digits is 26880, while the sum is 34.

The square root of 4221246571 is about 64971.1210538959. The cubic root of 4221246571 is about 1616.1446923989.

Adding to 4221246571 its reverse (1756421224), we get a palindrome (5977667795).

The spelling of 4221246571 in words is "four billion, two hundred twenty-one million, two hundred forty-six thousand, five hundred seventy-one".