111221000183 has 2 divisors, whose sum is σ = 111221000184. Its totient is φ = 111221000182.

The previous prime is 111221000179. The next prime is 111221000197. The reversal of 111221000183 is 381000122111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111221000183 - 2² = 111221000179 is a prime.

It is a super-2 number, since 2×111221000183² (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 (111221000083) 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, 55610500091 + 55610500092.

It is an arithmetic number, because the mean of its divisors is an integer number (55610500092).

Almost surely, 2^111221000183 is an apocalyptic number.

111221000183 is a deficient number, since it is larger than the sum of its proper divisors (1).

111221000183 is an equidigital number, since it uses as much as digits as its factorization.

111221000183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 111221000183 its reverse (381000122111), we get a palindrome (492221122294).

The spelling of 111221000183 in words is "one hundred eleven billion, two hundred twenty-one million, one hundred eighty-three", and thus it is an aban number.