222044440221 has 12 divisors (see below), whose sum is σ = 320985624960. Its totient is φ = 147912042120.

The previous prime is 222044440201. The next prime is 222044440223. The reversal of 222044440221 is 122044440222.

It is a de Polignac number, because none of the positive numbers 2^k-222044440221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222044440223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9786765 + ... + 9809426.

It is an arithmetic number, because the mean of its divisors is an integer number (26748802080).

Almost surely, 2^222044440221 is an apocalyptic number.

It is an amenable number.

222044440221 is a deficient number, since it is larger than the sum of its proper divisors (98941184739).

222044440221 is a wasteful number, since it uses less digits than its factorization.

222044440221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19597456 (or 19597453 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 222044440221 its reverse (122044440222), we get a palindrome (344088880443).

Subtracting from 222044440221 its reverse (122044440222), we obtain a palindrome (99999999999).

The spelling of 222044440221 in words is "two hundred twenty-two billion, forty-four million, four hundred forty thousand, two hundred twenty-one".