111221102102212 has 12 divisors (see below), whose sum is σ = 194641667309740. Its totient is φ = 55609197156576.

The previous prime is 111221102102113. The next prime is 111221102102219. The reversal of 111221102102212 is 212201201122111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 52347308700736 + 58873793401476 = 7235144^2 + 7672926^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111221102102212.

It is not an unprimeable number, because it can be changed into a prime (111221102102219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338288787 + ... + 338617402.

Almost surely, 2^{111221102102212} is an apocalyptic number.

It is an amenable number.

111221102102212 is a deficient number, since it is larger than the sum of its proper divisors (83420565207528).

111221102102212 is a wasteful number, since it uses less digits than its factorization.

111221102102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676947270 (or 676947268 counting only the distinct ones).

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

Adding to 111221102102212 its reverse (212201201122111), we get a palindrome (323422303224323).

The spelling of 111221102102212 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred two million, one hundred two thousand, two hundred twelve".