111020202221212 has 12 divisors (see below), whose sum is σ = 195271573959000. Its totient is φ = 55228323947216.

The previous prime is 111020202221087. The next prime is 111020202221219. The reversal of 111020202221212 is 212122202020111.

It is a self number, because there is not a number n which added to its sum of digits gives 111020202221212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020202221219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70444289962 + ... + 70444291537.

It is an arithmetic number, because the mean of its divisors is an integer number (16272631163250).

Almost surely, 2^{111020202221212} is an apocalyptic number.

It is an amenable number.

111020202221212 is a deficient number, since it is larger than the sum of its proper divisors (84251371737788).

111020202221212 is a wasteful number, since it uses less digits than its factorization.

111020202221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140888581700 (or 140888581698 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 111020202221212 its reverse (212122202020111), we get a palindrome (323142404241323).

The spelling of 111020202221212 in words is "one hundred eleven trillion, twenty billion, two hundred two million, two hundred twenty-one thousand, two hundred twelve".