210000120101 has 4 divisors (see below), whose sum is σ = 213962386572. Its totient is φ = 206037853632.

The previous prime is 210000120091. The next prime is 210000120103. The reversal of 210000120101 is 101021000012.

210000120101 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 96100620001 + 113899500100 = 310001^2 + 337490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210000120101 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 (210000120103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1981133156 + ... + 1981133261.

It is an arithmetic number, because the mean of its divisors is an integer number (53490596643).

Almost surely, 2^210000120101 is an apocalyptic number.

It is an amenable number.

210000120101 is a deficient number, since it is larger than the sum of its proper divisors (3962266471).

210000120101 is an equidigital number, since it uses as much as digits as its factorization.

210000120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3962266470.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 210000120101 its reverse (101021000012), we get a palindrome (311021120113).

The spelling of 210000120101 in words is "two hundred ten billion, one hundred twenty thousand, one hundred one".