221422005344707 has 4 divisors (see below), whose sum is σ = 224726811394696. Its totient is φ = 218117199294720.

The previous prime is 221422005344681. The next prime is 221422005344713. The reversal of 221422005344707 is 707443500224122.

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 221422005344707 - 2³⁹ = 220872249530819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221422005345707) 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, 1652403024894 + ... + 1652403025027.

It is an arithmetic number, because the mean of its divisors is an integer number (56181702848674).

Almost surely, 2^{221422005344707} is an apocalyptic number.

221422005344707 is a deficient number, since it is larger than the sum of its proper divisors (3304806049989).

221422005344707 is an equidigital number, since it uses as much as digits as its factorization.

221422005344707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304806049988.

The product of its (nonzero) digits is 752640, while the sum is 43.

Adding to 221422005344707 its reverse (707443500224122), we get a palindrome (928865505568829).

The spelling of 221422005344707 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, five million, three hundred forty-four thousand, seven hundred seven".