201021110012291 has 2 divisors, whose sum is σ = 201021110012292. Its totient is φ = 201021110012290.

The previous prime is 201021110012287. The next prime is 201021110012341. The reversal of 201021110012291 is 192210011120102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201021110012291 - 2² = 201021110012287 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (201021110015291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510555006145 + 100510555006146.

It is an arithmetic number, because the mean of its divisors is an integer number (100510555006146).

Almost surely, 2^{201021110012291} is an apocalyptic number.

201021110012291 is a deficient number, since it is larger than the sum of its proper divisors (1).

201021110012291 is an equidigital number, since it uses as much as digits as its factorization.

201021110012291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

Adding to 201021110012291 its reverse (192210011120102), we get a palindrome (393231121132393).

The spelling of 201021110012291 in words is "two hundred one trillion, twenty-one billion, one hundred ten million, twelve thousand, two hundred ninety-one".