111201101212 has 6 divisors (see below), whose sum is σ = 194601927128. Its totient is φ = 55600550604.

The previous prime is 111201101161. The next prime is 111201101213. The reversal of 111201101212 is 212101102111.

It is a happy number.

It is a super-3 number, since 3×111201101212³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 111201101192 and 111201101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201101213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13900137648 + ... + 13900137655.

Almost surely, 2^111201101212 is an apocalyptic number.

It is an amenable number.

111201101212 is a deficient number, since it is larger than the sum of its proper divisors (83400825916).

111201101212 is a wasteful number, since it uses less digits than its factorization.

111201101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27800275307 (or 27800275305 counting only the distinct ones).

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

Adding to 111201101212 its reverse (212101102111), we get a palindrome (323302203323).

The spelling of 111201101212 in words is "one hundred eleven billion, two hundred one million, one hundred one thousand, two hundred twelve".