111012020111902 has 16 divisors (see below), whose sum is σ = 204945267899232. Its totient is φ = 43916843121120.

The previous prime is 111012020111879. The next prime is 111012020111903. The reversal of 111012020111902 is 209111020210111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012020111903) 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 in 7 ways as a sum of consecutive naturals, for example, 304978077049 + ... + 304978077412.

It is an arithmetic number, because the mean of its divisors is an integer number (12809079243702).

Almost surely, 2^{111012020111902} is an apocalyptic number.

111012020111902 is a deficient number, since it is larger than the sum of its proper divisors (93933247787330).

111012020111902 is a wasteful number, since it uses less digits than its factorization.

111012020111902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609956154483.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 111012020111902 in words is "one hundred eleven trillion, twelve billion, twenty million, one hundred eleven thousand, nine hundred two".