222243241361 has 2 divisors, whose sum is σ = 222243241362. Its totient is φ = 222243241360.

The previous prime is 222243241307. The next prime is 222243241369. The reversal of 222243241361 is 163142342222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208027210000 + 14216031361 = 456100^2 + 119231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222243241361 is a prime.

It is a super-4 number, since 4×222243241361⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (222243241369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111121620680 + 111121620681.

It is an arithmetic number, because the mean of its divisors is an integer number (111121620681).

Almost surely, 2^222243241361 is an apocalyptic number.

It is an amenable number.

222243241361 is a deficient number, since it is larger than the sum of its proper divisors (1).

222243241361 is an equidigital number, since it uses as much as digits as its factorization.

222243241361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 32.

Adding to 222243241361 its reverse (163142342222), we get a palindrome (385385583583).

The spelling of 222243241361 in words is "two hundred twenty-two billion, two hundred forty-three million, two hundred forty-one thousand, three hundred sixty-one".