222305101 has 2 divisors, whose sum is σ = 222305102. Its totient is φ = 222305100.

The previous prime is 222305099. The next prime is 222305119. The reversal of 222305101 is 101503222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221980201 + 324900 = 14899^2 + 570^2 .

It is a cyclic number.

It is not a de Polignac number, because 222305101 - 2¹ = 222305099 is a prime.

Together with 222305099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222305191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111152550 + 111152551.

It is an arithmetic number, because the mean of its divisors is an integer number (111152551).

Almost surely, 2^222305101 is an apocalyptic number.

It is an amenable number.

222305101 is a deficient number, since it is larger than the sum of its proper divisors (1).

222305101 is an equidigital number, since it uses as much as digits as its factorization.

222305101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 222305101 is about 14909.8994295736. The cubic root of 222305101 is about 605.7821552850.

Adding to 222305101 its reverse (101503222), we get a palindrome (323808323).

The spelling of 222305101 in words is "two hundred twenty-two million, three hundred five thousand, one hundred one".