111122010987 has 16 divisors (see below), whose sum is σ = 159597408768. Its totient is φ = 68366662560.

The previous prime is 111122010919. The next prime is 111122011003. The reversal of 111122010987 is 789010221111.

It is not a de Polignac number, because 111122010987 - 2⁸ = 111122010731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111122020987) 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 in 15 ways as a sum of consecutive naturals, for example, 166993 + ... + 500130.

It is an arithmetic number, because the mean of its divisors is an integer number (9974838048).

Almost surely, 2^111122010987 is an apocalyptic number.

111122010987 is a deficient number, since it is larger than the sum of its proper divisors (48475397781).

111122010987 is a wasteful number, since it uses less digits than its factorization.

111122010987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671410.

The product of its (nonzero) digits is 2016, while the sum is 33.

The spelling of 111122010987 in words is "one hundred eleven billion, one hundred twenty-two million, ten thousand, nine hundred eighty-seven".