111021002012 has 12 divisors (see below), whose sum is σ = 196948216416. Its totient is φ = 54750083040.

The previous prime is 111021001969. The next prime is 111021002033. The reversal of 111021002012 is 210200120111.

It is a junction number, because it is equal to n+sod(n) for n = 111021001984 and 111021002002.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 190104164 + ... + 190104747.

It is an arithmetic number, because the mean of its divisors is an integer number (16412351368).

Almost surely, 2^111021002012 is an apocalyptic number.

It is an amenable number.

111021002012 is a deficient number, since it is larger than the sum of its proper divisors (85927214404).

111021002012 is a wasteful number, since it uses less digits than its factorization.

111021002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380208988 (or 380208986 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111021002012 its reverse (210200120111), we get a palindrome (321221122123).

The spelling of 111021002012 in words is "one hundred eleven billion, twenty-one million, two thousand, twelve".