201212000111 has 16 divisors (see below), whose sum is σ = 219196723200. Its totient is φ = 183998368800.

The previous prime is 201212000107. The next prime is 201212000123. The reversal of 201212000111 is 111000212102.

It is a cyclic number.

It is not a de Polignac number, because 201212000111 - 2² = 201212000107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201212000092 and 201212000101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201212000191) 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, 209975 + ... + 668216.

It is an arithmetic number, because the mean of its divisors is an integer number (13699795200).

Almost surely, 2^201212000111 is an apocalyptic number.

201212000111 is a deficient number, since it is larger than the sum of its proper divisors (17984723089).

201212000111 is a wasteful number, since it uses less digits than its factorization.

201212000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878630.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201212000111 its reverse (111000212102), we get a palindrome (312212212213).

The spelling of 201212000111 in words is "two hundred one billion, two hundred twelve million, one hundred eleven", and thus it is an aban number.