111050002121 has 2 divisors, whose sum is σ = 111050002122. Its totient is φ = 111050002120.

The previous prime is 111050002099. The next prime is 111050002153. The reversal of 111050002121 is 121200050111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65226606025 + 45823396096 = 255395^2 + 214064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111050002121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111050002096 and 111050002105.

It is not a weakly prime, because it can be changed into another prime (111050062121) 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, 55525001060 + 55525001061.

It is an arithmetic number, because the mean of its divisors is an integer number (55525001061).

Almost surely, 2^111050002121 is an apocalyptic number.

It is an amenable number.

111050002121 is a deficient number, since it is larger than the sum of its proper divisors (1).

111050002121 is an equidigital number, since it uses as much as digits as its factorization.

111050002121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 14.

Adding to 111050002121 its reverse (121200050111), we get a palindrome (232250052232).

The spelling of 111050002121 in words is "one hundred eleven billion, fifty million, two thousand, one hundred twenty-one".