100012201291 has 2 divisors, whose sum is σ = 100012201292. Its totient is φ = 100012201290.

The previous prime is 100012201253. The next prime is 100012201337. The reversal of 100012201291 is 192102210001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100012201291 - 2¹⁵ = 100012168523 is a prime.

It is not a weakly prime, because it can be changed into another prime (100012201391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50006100645 + 50006100646.

It is an arithmetic number, because the mean of its divisors is an integer number (50006100646).

Almost surely, 2^100012201291 is an apocalyptic number.

100012201291 is a deficient number, since it is larger than the sum of its proper divisors (1).

100012201291 is an equidigital number, since it uses as much as digits as its factorization.

100012201291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 100012201291 its reverse (192102210001), we get a palindrome (292114411292).

The spelling of 100012201291 in words is "one hundred billion, twelve million, two hundred one thousand, two hundred ninety-one".