201111110010 has 40 divisors (see below), whose sum is σ = 540765431316. Its totient is φ = 53629629120.

The previous prime is 201111109999. The next prime is 201111110069. The reversal of 201111110010 is 10011111102.

201111110010 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 181703555289 + 19407554721 = 426267^2 + 139311^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 201111109974 and 201111110001.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 124141851 + ... + 124143470.

Almost surely, 2^201111110010 is an apocalyptic number.

201111110010 is an abundant number, since it is smaller than the sum of its proper divisors (339654321306).

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

201111110010 is a wasteful number, since it uses less digits than its factorization.

201111110010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248285340 (or 248285331 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 201111110010 its reverse (10011111102), we get a palindrome (211122221112).

The spelling of 201111110010 in words is "two hundred one billion, one hundred eleven million, one hundred ten thousand, ten".