111220223 has 2 divisors, whose sum is σ = 111220224. Its totient is φ = 111220222.

The previous prime is 111220217. The next prime is 111220247. The reversal of 111220223 is 322022111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111220223 - 2⁶ = 111220159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111220198 and 111220207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111223223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610111 + 55610112.

It is an arithmetic number, because the mean of its divisors is an integer number (55610112).

Almost surely, 2^111220223 is an apocalyptic number.

111220223 is a deficient number, since it is larger than the sum of its proper divisors (1).

111220223 is an equidigital number, since it uses as much as digits as its factorization.

111220223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 111220223 is about 10546.0998952219. The cubic root of 111220223 is about 480.9071718604.

Adding to 111220223 its reverse (322022111), we get a palindrome (433242334).

The spelling of 111220223 in words is "one hundred eleven million, two hundred twenty thousand, two hundred twenty-three".