111111202212 has 24 divisors (see below), whose sum is σ = 261300888576. Its totient is φ = 36745436448.

The previous prime is 111111202193. The next prime is 111111202217. The reversal of 111111202212 is 212202111111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111111202191 and 111111202200.

It is not an unprimeable number, because it can be changed into a prime (111111202217) 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, 36452283 + ... + 36455330.

It is an arithmetic number, because the mean of its divisors is an integer number (10887537024).

Almost surely, 2^111111202212 is an apocalyptic number.

111111202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111111202212 is an abundant number, since it is smaller than the sum of its proper divisors (150189686364).

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

111111202212 is a wasteful number, since it uses less digits than its factorization.

111111202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72907747 (or 72907745 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111111202212 its reverse (212202111111), we get a palindrome (323313313323).

The spelling of 111111202212 in words is "one hundred eleven billion, one hundred eleven million, two hundred two thousand, two hundred twelve".