111121201202212 has 24 divisors (see below), whose sum is σ = 197758711180800. Its totient is φ = 54618718400736.

The previous prime is 111121201202203. The next prime is 111121201202251. The reversal of 111121201202212 is 212202102121111.

It is a happy number.

It is a super-2 number, since 2×111121201202212² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111121201202212.

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 7 ways as a sum of consecutive naturals, for example, 100662714 + ... + 101760622.

It is an arithmetic number, because the mean of its divisors is an integer number (8239946299200).

Almost surely, 2^{111121201202212} is an apocalyptic number.

It is an amenable number.

111121201202212 is a deficient number, since it is larger than the sum of its proper divisors (86637509978588).

111121201202212 is a wasteful number, since it uses less digits than its factorization.

111121201202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526835 (or 1526833 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111121201202212 its reverse (212202102121111), we get a palindrome (323323303323323).

The spelling of 111121201202212 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred one million, two hundred two thousand, two hundred twelve".