4221415722866 has 8 divisors (see below), whose sum is σ = 6418865003484. Its totient is φ = 2081794055040.

The previous prime is 4221415722773. The next prime is 4221415722871. The reversal of 4221415722866 is 6682275141224.

It can be written as a sum of positive squares in 2 ways, for example, as 3776333271841 + 445082451025 = 1943279^2 + 667145^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 14456903015 + ... + 14456903306.

Almost surely, 2^{4221415722866} is an apocalyptic number.

4221415722866 is a deficient number, since it is larger than the sum of its proper divisors (2197449280618).

4221415722866 is a wasteful number, since it uses less digits than its factorization.

4221415722866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28913806396.

The product of its digits is 2580480, while the sum is 50.

The spelling of 4221415722866 in words is "four trillion, two hundred twenty-one billion, four hundred fifteen million, seven hundred twenty-two thousand, eight hundred sixty-six".