111222212041 has 2 divisors, whose sum is σ = 111222212042. Its totient is φ = 111222212040.

The previous prime is 111222211999. The next prime is 111222212063. The reversal of 111222212041 is 140212222111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110912311225 + 309900816 = 333035^2 + 17604^2 .

It is a cyclic number.

It is not a de Polignac number, because 111222212041 - 2¹⁷ = 111222080969 is a prime.

It is not a weakly prime, because it can be changed into another prime (111222312041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611106020 + 55611106021.

It is an arithmetic number, because the mean of its divisors is an integer number (55611106021).

Almost surely, 2^111222212041 is an apocalyptic number.

It is an amenable number.

111222212041 is a deficient number, since it is larger than the sum of its proper divisors (1).

111222212041 is an equidigital number, since it uses as much as digits as its factorization.

111222212041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 111222212041 its reverse (140212222111), we get a palindrome (251434434152).

The spelling of 111222212041 in words is "one hundred eleven billion, two hundred twenty-two million, two hundred twelve thousand, forty-one".