210100211021201 has 4 divisors (see below), whose sum is σ = 215224606412004. Its totient is φ = 204975815630400.

The previous prime is 210100211021189. The next prime is 210100211021203. The reversal of 210100211021201 is 102120112001012.

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 5881963676176 + 204218247345025 = 2425276^2 + 14290495^2 .

It is a cyclic number.

It is not a de Polignac number, because 210100211021201 - 2⁶ = 210100211021137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210100211021203) 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, 2562197695340 + ... + 2562197695421.

It is an arithmetic number, because the mean of its divisors is an integer number (53806151603001).

Almost surely, 2^{210100211021201} is an apocalyptic number.

It is an amenable number.

210100211021201 is a deficient number, since it is larger than the sum of its proper divisors (5124395390803).

210100211021201 is an equidigital number, since it uses as much as digits as its factorization.

210100211021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5124395390802.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210100211021201 its reverse (102120112001012), we get a palindrome (312220323022213).

The spelling of 210100211021201 in words is "two hundred ten trillion, one hundred billion, two hundred eleven million, twenty-one thousand, two hundred one".