111200022021017 has 2 divisors, whose sum is σ = 111200022021018. Its totient is φ = 111200022021016.

The previous prime is 111200022020947. The next prime is 111200022021029. The reversal of 111200022021017 is 710120220002111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79562760681616 + 31637261339401 = 8919796^2 + 5624701^2 .

It is a cyclic number.

It is not a de Polignac number, because 111200022021017 - 2²² = 111200017826713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111200022021017.

It is not a weakly prime, because it can be changed into another prime (111200022021037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600011010508 + 55600011010509.

It is an arithmetic number, because the mean of its divisors is an integer number (55600011010509).

Almost surely, 2^{111200022021017} is an apocalyptic number.

It is an amenable number.

111200022021017 is a deficient number, since it is larger than the sum of its proper divisors (1).

111200022021017 is an equidigital number, since it uses as much as digits as its factorization.

111200022021017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 111200022021017 its reverse (710120220002111), we get a palindrome (821320242023128).

The spelling of 111200022021017 in words is "one hundred eleven trillion, two hundred billion, twenty-two million, twenty-one thousand, seventeen".