111216022636 has 12 divisors (see below), whose sum is σ = 194634071128. Its totient is φ = 55606288032.

The previous prime is 111216022583. The next prime is 111216022649. The reversal of 111216022636 is 636220612111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111216022598 and 111216022607.

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, 279726 + ... + 548341.

Almost surely, 2^111216022636 is an apocalyptic number.

It is an amenable number.

111216022636 is a deficient number, since it is larger than the sum of its proper divisors (83418048492).

111216022636 is a wasteful number, since it uses less digits than its factorization.

111216022636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861648 (or 861646 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

Adding to 111216022636 its reverse (636220612111), we get a palindrome (747436634747).

The spelling of 111216022636 in words is "one hundred eleven billion, two hundred sixteen million, twenty-two thousand, six hundred thirty-six".