2012201291 has 2 divisors, whose sum is σ = 2012201292. Its totient is φ = 2012201290.

The previous prime is 2012201263. The next prime is 2012201293. The reversal of 2012201291 is 1921022102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2012201291 - 2¹⁴ = 2012184907 is a prime.

Together with 2012201293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2012201293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006100645 + 1006100646.

It is an arithmetic number, because the mean of its divisors is an integer number (1006100646).

Almost surely, 2^2012201291 is an apocalyptic number.

2012201291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012201291 is an equidigital number, since it uses as much as digits as its factorization.

2012201291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 2012201291 is about 44857.5667084161. The cubic root of 2012201291 is about 1262.4779678670.

Adding to 2012201291 its reverse (1921022102), we get a palindrome (3933223393).

The spelling of 2012201291 in words is "two billion, twelve million, two hundred one thousand, two hundred ninety-one".