10111121222087 has 2 divisors, whose sum is σ = 10111121222088. Its totient is φ = 10111121222086.

The previous prime is 10111121222063. The next prime is 10111121222159. The reversal of 10111121222087 is 78022212111101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10111121222087 - 2⁶ = 10111121222023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111121222887) 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, 5055560611043 + 5055560611044.

It is an arithmetic number, because the mean of its divisors is an integer number (5055560611044).

Almost surely, 2^{10111121222087} is an apocalyptic number.

10111121222087 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111121222087 is an equidigital number, since it uses as much as digits as its factorization.

10111121222087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 29.

Adding to 10111121222087 its reverse (78022212111101), we get a palindrome (88133333333188).

The spelling of 10111121222087 in words is "ten trillion, one hundred eleven billion, one hundred twenty-one million, two hundred twenty-two thousand, eighty-seven".