111201210212212 has 12 divisors (see below), whose sum is σ = 194604783836260. Its totient is φ = 55599843401856.

The previous prime is 111201210212189. The next prime is 111201210212219. The reversal of 111201210212212 is 212212012102111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16216616244196 + 94984593968016 = 4026986^2 + 9746004^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111201210212212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201210212219) 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, 190097523 + ... + 190681594.

Almost surely, 2^{111201210212212} is an apocalyptic number.

It is an amenable number.

111201210212212 is a deficient number, since it is larger than the sum of its proper divisors (83403573624048).

111201210212212 is a wasteful number, since it uses less digits than its factorization.

111201210212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380852130 (or 380852128 counting only the distinct ones).

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

Adding to 111201210212212 its reverse (212212012102111), we get a palindrome (323413222314323).

The spelling of 111201210212212 in words is "one hundred eleven trillion, two hundred one billion, two hundred ten million, two hundred twelve thousand, two hundred twelve".