4221417112681 has 2 divisors, whose sum is σ = 4221417112682. Its totient is φ = 4221417112680.

The previous prime is 4221417112663. The next prime is 4221417112691. The reversal of 4221417112681 is 1862117141224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4161257287056 + 60159825625 = 2039916^2 + 245275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4221417112681 is a prime.

It is a super-2 number, since 2×4221417112681² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4221417112691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110708556340 + 2110708556341.

It is an arithmetic number, because the mean of its divisors is an integer number (2110708556341).

Almost surely, 2^{4221417112681} is an apocalyptic number.

It is an amenable number.

4221417112681 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221417112681 is an equidigital number, since it uses as much as digits as its factorization.

4221417112681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 40.

The spelling of 4221417112681 in words is "four trillion, two hundred twenty-one billion, four hundred seventeen million, one hundred twelve thousand, six hundred eighty-one".