10211891201 has 4 divisors (see below), whose sum is σ = 10276935252. Its totient is φ = 10146847152.

The previous prime is 10211891161. The next prime is 10211891243. The reversal of 10211891201 is 10219811201.

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 3576159601 + 6635731600 = 59801^2 + 81460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10211891201 is a prime.

It is a super-3 number, since 3×10211891201³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10211891281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32521790 + ... + 32522103.

It is an arithmetic number, because the mean of its divisors is an integer number (2569233813).

Almost surely, 2^10211891201 is an apocalyptic number.

It is an amenable number.

10211891201 is a deficient number, since it is larger than the sum of its proper divisors (65044051).

10211891201 is an equidigital number, since it uses as much as digits as its factorization.

10211891201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65044050.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 10211891201 in words is "ten billion, two hundred eleven million, eight hundred ninety-one thousand, two hundred one".