111122020012 has 24 divisors (see below), whose sum is σ = 197961120000. Its totient is φ = 54563620176.

The previous prime is 111122019991. The next prime is 111122020033. The reversal of 111122020012 is 210020221111.

It is an interprime number because it is at equal distance from previous prime (111122019991) and next prime (111122020033).

It is a junction number, because it is equal to n+sod(n) for n = 111122019974 and 111122020001.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7512 + ... + 471487.

It is an arithmetic number, because the mean of its divisors is an integer number (8248380000).

Almost surely, 2^111122020012 is an apocalyptic number.

It is an amenable number.

111122020012 is a deficient number, since it is larger than the sum of its proper divisors (86839099988).

111122020012 is a wasteful number, since it uses less digits than its factorization.

111122020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480045 (or 480043 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111122020012 its reverse (210020221111), we get a palindrome (321142241123).

The spelling of 111122020012 in words is "one hundred eleven billion, one hundred twenty-two million, twenty thousand, twelve".