111021111001012 has 24 divisors (see below), whose sum is σ = 194719378617792. Its totient is φ = 55387067985600.

The previous prime is 111021111000983. The next prime is 111021111001027. The reversal of 111021111001012 is 210100111120111.

It is a junction number, because it is equal to n+sod(n) for n = 111021111000983 and 111021111001001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326478 + ... + 14960005.

It is an arithmetic number, because the mean of its divisors is an integer number (8113307442408).

Almost surely, 2^{111021111001012} is an apocalyptic number.

It is an amenable number.

111021111001012 is a deficient number, since it is larger than the sum of its proper divisors (83698267616780).

111021111001012 is a wasteful number, since it uses less digits than its factorization.

111021111001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16290279 (or 16290277 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111021111001012 its reverse (210100111120111), we get a palindrome (321121222121123).

The spelling of 111021111001012 in words is "one hundred eleven trillion, twenty-one billion, one hundred eleven million, one thousand, twelve".