12021200101 has 4 divisors (see below), whose sum is σ = 12044817900. Its totient is φ = 11997582304.

The previous prime is 12021200077. The next prime is 12021200111. The reversal of 12021200101 is 10100212021.

12021200101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9516197601 + 2505002500 = 97551^2 + 50050^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021200101 - 2¹¹ = 12021198053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021200111) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11808136 + ... + 11809153.

It is an arithmetic number, because the mean of its divisors is an integer number (3011204475).

Almost surely, 2^12021200101 is an apocalyptic number.

It is an amenable number.

12021200101 is a deficient number, since it is larger than the sum of its proper divisors (23617799).

12021200101 is an equidigital number, since it uses as much as digits as its factorization.

12021200101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23617798.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12021200101 its reverse (10100212021), we get a palindrome (22121412122).

The spelling of 12021200101 in words is "twelve billion, twenty-one million, two hundred thousand, one hundred one".