111101221000012 has 12 divisors (see below), whose sum is σ = 194435560599336. Its totient is φ = 55548203685920.

The previous prime is 111101221000001. The next prime is 111101221000039. The reversal of 111101221000012 is 210000122101111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111101220999956 and 111101221000001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601599658 + ... + 601784305.

It is an arithmetic number, because the mean of its divisors is an integer number (16202963383278).

Almost surely, 2^{111101221000012} is an apocalyptic number.

It is an amenable number.

111101221000012 is a deficient number, since it is larger than the sum of its proper divisors (83334339599324).

111101221000012 is a wasteful number, since it uses less digits than its factorization.

111101221000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203407048 (or 1203407046 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111101221000012 its reverse (210000122101111), we get a palindrome (321101343101123).

The spelling of 111101221000012 in words is "one hundred eleven trillion, one hundred one billion, two hundred twenty-one million, twelve", and thus it is an aban number.