12000201111 has 20 divisors (see below), whose sum is σ = 18980712432. Its totient is φ = 7529537088.

The previous prime is 12000201053. The next prime is 12000201137. The reversal of 12000201111 is 11110200021.

It is a happy number.

It is not a de Polignac number, because 12000201111 - 2⁶ = 12000201047 is a prime.

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 = 12000201093 and 12000201102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000201511) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4355995 + ... + 4358748.

Almost surely, 2^12000201111 is an apocalyptic number.

12000201111 is a deficient number, since it is larger than the sum of its proper divisors (6980511321).

12000201111 is an equidigital number, since it uses as much as digits as its factorization.

12000201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8714772 (or 8714763 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12000201111 its reverse (11110200021), we get a palindrome (23110401132).

The spelling of 12000201111 in words is "twelve billion, two hundred one thousand, one hundred eleven".