111012012222101 has 2 divisors, whose sum is σ = 111012012222102. Its totient is φ = 111012012222100.

The previous prime is 111012012222071. The next prime is 111012012222149. The reversal of 111012012222101 is 101222210210111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108144899727076 + 2867112495025 = 10399274^2 + 1693255^2 .

It is an emirp because it is prime and its reverse (101222210210111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111012012222101 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111012012222101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111012012222301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506006111050 + 55506006111051.

It is an arithmetic number, because the mean of its divisors is an integer number (55506006111051).

Almost surely, 2^{111012012222101} is an apocalyptic number.

It is an amenable number.

111012012222101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012012222101 is an equidigital number, since it uses as much as digits as its factorization.

111012012222101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111012012222101 its reverse (101222210210111), we get a palindrome (212234222432212).

The spelling of 111012012222101 in words is "one hundred eleven trillion, twelve billion, twelve million, two hundred twenty-two thousand, one hundred one".