201111120212 has 12 divisors (see below), whose sum is σ = 355898893140. Its totient is φ = 99425722176.

The previous prime is 201111120211. The next prime is 201111120229. The reversal of 201111120212 is 212021111102.

It can be written as a sum of positive squares in 2 ways, for example, as 44131925776 + 156979194436 = 210076^2 + 396206^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201111120211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282459083 + ... + 282459794.

It is an arithmetic number, because the mean of its divisors is an integer number (29658241095).

Almost surely, 2^201111120212 is an apocalyptic number.

It is an amenable number.

201111120212 is a deficient number, since it is larger than the sum of its proper divisors (154787772928).

201111120212 is a wasteful number, since it uses less digits than its factorization.

201111120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564918970 (or 564918968 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201111120212 its reverse (212021111102), we get a palindrome (413132231314).

The spelling of 201111120212 in words is "two hundred one billion, one hundred eleven million, one hundred twenty thousand, two hundred twelve".