111331022012212 has 24 divisors (see below), whose sum is σ = 200086182495360. Its totient is φ = 54176774513280.

The previous prime is 111331022012207. The next prime is 111331022012219. The reversal of 111331022012212 is 212210220133111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111331022012219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1654117989 + ... + 1654185292.

It is an arithmetic number, because the mean of its divisors is an integer number (8336924270640).

Almost surely, 2^{111331022012212} is an apocalyptic number.

It is an amenable number.

111331022012212 is a deficient number, since it is larger than the sum of its proper divisors (88755160483148).

111331022012212 is a wasteful number, since it uses less digits than its factorization.

111331022012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308303511 (or 3308303509 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 111331022012212 its reverse (212210220133111), we get a palindrome (323541242145323).

The spelling of 111331022012212 in words is "one hundred eleven trillion, three hundred thirty-one billion, twenty-two million, twelve thousand, two hundred twelve".