222221443273 has 2 divisors, whose sum is σ = 222221443274. Its totient is φ = 222221443272.

The previous prime is 222221443271. The next prime is 222221443277. The reversal of 222221443273 is 372344122222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135871857664 + 86349585609 = 368608^2 + 293853^2 .

It is a cyclic number.

It is not a de Polignac number, because 222221443273 - 2¹ = 222221443271 is a prime.

Together with 222221443271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (222221443271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110721636 + 111110721637.

It is an arithmetic number, because the mean of its divisors is an integer number (111110721637).

Almost surely, 2^222221443273 is an apocalyptic number.

It is an amenable number.

222221443273 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221443273 is an equidigital number, since it uses as much as digits as its factorization.

222221443273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 34.

Adding to 222221443273 its reverse (372344122222), we get a palindrome (594565565495).

The spelling of 222221443273 in words is "two hundred twenty-two billion, two hundred twenty-one million, four hundred forty-three thousand, two hundred seventy-three".