12101100201 has 48 divisors (see below), whose sum is σ = 18376270848. Its totient is φ = 7664025600.

The previous prime is 12101100197. The next prime is 12101100203. The reversal of 12101100201 is 10200110121.

It is a happy number.

It is not a de Polignac number, because 12101100201 - 2² = 12101100197 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 (12101100203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5089725 + ... + 5092101.

It is an arithmetic number, because the mean of its divisors is an integer number (382838976).

Almost surely, 2^12101100201 is an apocalyptic number.

It is an amenable number.

12101100201 is a deficient number, since it is larger than the sum of its proper divisors (6275170647).

12101100201 is a wasteful number, since it uses less digits than its factorization.

12101100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742 (or 2739 counting only the distinct ones).

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

Adding to 12101100201 its reverse (10200110121), we get a palindrome (22301210322).

The spelling of 12101100201 in words is "twelve billion, one hundred one million, one hundred thousand, two hundred one".