111221111102212 has 12 divisors (see below), whose sum is σ = 198778156012800. Its totient is φ = 54427352241416.

The previous prime is 111221111102141. The next prime is 111221111102281. The reversal of 111221111102212 is 212201111122111.

It is a super-2 number, since 2×111221111102212² (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 111221111102212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295800827212 + ... + 295800827587.

It is an arithmetic number, because the mean of its divisors is an integer number (16564846334400).

Almost surely, 2^{111221111102212} is an apocalyptic number.

It is an amenable number.

111221111102212 is a deficient number, since it is larger than the sum of its proper divisors (87557044910588).

111221111102212 is a wasteful number, since it uses less digits than its factorization.

111221111102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591601654850 (or 591601654848 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 111221111102212 its reverse (212201111122111), we get a palindrome (323422222224323).

The spelling of 111221111102212 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred eleven million, one hundred two thousand, two hundred twelve".