201210120200105 has 4 divisors (see below), whose sum is σ = 241452144240132. Its totient is φ = 160968096160080.

The previous prime is 201210120200069. The next prime is 201210120200107. The reversal of 201210120200105 is 501002021012102.

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 34261729635904 + 166948390564201 = 5853352^2 + 12920851^2 .

It is a de Polignac number, because none of the positive numbers 2^k-201210120200105 is a prime.

It is a super-2 number, since 2×201210120200105² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201210120200107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20121012020006 + ... + 20121012020015.

It is an arithmetic number, because the mean of its divisors is an integer number (60363036060033).

Almost surely, 2^{201210120200105} is an apocalyptic number.

It is an amenable number.

201210120200105 is a deficient number, since it is larger than the sum of its proper divisors (40242024040027).

201210120200105 is an equidigital number, since it uses as much as digits as its factorization.

201210120200105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40242024040026.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 201210120200105 its reverse (501002021012102), we get a palindrome (702212141212207).

The spelling of 201210120200105 in words is "two hundred one trillion, two hundred ten billion, one hundred twenty million, two hundred thousand, one hundred five".