223444212011 has 2 divisors, whose sum is σ = 223444212012. Its totient is φ = 223444212010.

The previous prime is 223444211987. The next prime is 223444212023. The reversal of 223444212011 is 110212444322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223444212011 is a prime.

It is not a weakly prime, because it can be changed into another prime (223444212311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111722106005 + 111722106006.

It is an arithmetic number, because the mean of its divisors is an integer number (111722106006).

Almost surely, 2^223444212011 is an apocalyptic number.

223444212011 is a deficient number, since it is larger than the sum of its proper divisors (1).

223444212011 is an equidigital number, since it uses as much as digits as its factorization.

223444212011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 223444212011 its reverse (110212444322), we get a palindrome (333656656333).

The spelling of 223444212011 in words is "two hundred twenty-three billion, four hundred forty-four million, two hundred twelve thousand, eleven".