111223223011 has 2 divisors, whose sum is σ = 111223223012. Its totient is φ = 111223223010.

The previous prime is 111223222997. The next prime is 111223223029. The reversal of 111223223011 is 110322322111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111223223011 - 2¹⁷ = 111223091939 is a prime.

It is a super-2 number, since 2×111223223011² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111223223011.

It is not a weakly prime, because it can be changed into another prime (111223223311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611611505 + 55611611506.

It is an arithmetic number, because the mean of its divisors is an integer number (55611611506).

Almost surely, 2^111223223011 is an apocalyptic number.

111223223011 is a deficient number, since it is larger than the sum of its proper divisors (1).

111223223011 is an equidigital number, since it uses as much as digits as its factorization.

111223223011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111223223011 its reverse (110322322111), we get a palindrome (221545545122).

The spelling of 111223223011 in words is "one hundred eleven billion, two hundred twenty-three million, two hundred twenty-three thousand, eleven".