222221122247 has 2 divisors, whose sum is σ = 222221122248. Its totient is φ = 222221122246.

The previous prime is 222221122213. The next prime is 222221122261. The reversal of 222221122247 is 742221122222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222221122247 - 2¹² = 222221118151 is a prime.

It is a super-2 number, since 2×222221122247² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222221182247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110561123 + 111110561124.

It is an arithmetic number, because the mean of its divisors is an integer number (111110561124).

Almost surely, 2^222221122247 is an apocalyptic number.

222221122247 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221122247 is an equidigital number, since it uses as much as digits as its factorization.

222221122247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7168, while the sum is 29.

Adding to 222221122247 its reverse (742221122222), we get a palindrome (964442244469).

The spelling of 222221122247 in words is "two hundred twenty-two billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred forty-seven".