201220130212291 has 2 divisors, whose sum is σ = 201220130212292. Its totient is φ = 201220130212290.

The previous prime is 201220130212289. The next prime is 201220130212327. The reversal of 201220130212291 is 192212031022102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201220130212291 - 2¹ = 201220130212289 is a prime.

Together with 201220130212289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (201220130212091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100610065106145 + 100610065106146.

It is an arithmetic number, because the mean of its divisors is an integer number (100610065106146).

Almost surely, 2^{201220130212291} is an apocalyptic number.

201220130212291 is a deficient number, since it is larger than the sum of its proper divisors (1).

201220130212291 is an equidigital number, since it uses as much as digits as its factorization.

201220130212291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 201220130212291 its reverse (192212031022102), we get a palindrome (393432161234393).

The spelling of 201220130212291 in words is "two hundred one trillion, two hundred twenty billion, one hundred thirty million, two hundred twelve thousand, two hundred ninety-one".