12011100201 has 16 divisors (see below), whose sum is σ = 18407817600. Its totient is φ = 7731282384.

The previous prime is 12011100191. The next prime is 12011100217. The reversal of 12011100201 is 10200111021.

It is a happy number.

It is not a de Polignac number, because 12011100201 - 2¹⁴ = 12011083817 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (12011100271) 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, 7669141 + ... + 7670706.

It is an arithmetic number, because the mean of its divisors is an integer number (1150488600).

Almost surely, 2^12011100201 is an apocalyptic number.

It is an amenable number.

12011100201 is a deficient number, since it is larger than the sum of its proper divisors (6396717399).

12011100201 is a wasteful number, since it uses less digits than its factorization.

12011100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15339885 (or 15339879 counting only the distinct ones).

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

Adding to 12011100201 its reverse (10200111021), we get a palindrome (22211211222).

The spelling of 12011100201 in words is "twelve billion, eleven million, one hundred thousand, two hundred one".