111303001212 has 48 divisors (see below), whose sum is σ = 280001554560. Its totient is φ = 34208250048.

The previous prime is 111303001211. The next prime is 111303001217. The reversal of 111303001212 is 212100303111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111303001191 and 111303001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111303001211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266262 + ... + 541757.

It is an arithmetic number, because the mean of its divisors is an integer number (5833365720).

Almost surely, 2^111303001212 is an apocalyptic number.

111303001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111303001212 is an abundant number, since it is smaller than the sum of its proper divisors (168698553348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111303001212 is a wasteful number, since it uses less digits than its factorization.

111303001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808922 (or 808920 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 111303001212 its reverse (212100303111), we get a palindrome (323403304323).

The spelling of 111303001212 in words is "one hundred eleven billion, three hundred three million, one thousand, two hundred twelve".