99211412291 has 2 divisors, whose sum is σ = 99211412292. Its totient is φ = 99211412290.

The previous prime is 99211412269. The next prime is 99211412303. The reversal of 99211412291 is 19221411299.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99211412291 - 2²² = 99207217987 is a prime.

It is not a weakly prime, because it can be changed into another prime (99211412231) 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, 49605706145 + 49605706146.

It is an arithmetic number, because the mean of its divisors is an integer number (49605706146).

Almost surely, 2^99211412291 is an apocalyptic number.

99211412291 is a deficient number, since it is larger than the sum of its proper divisors (1).

99211412291 is an equidigital number, since it uses as much as digits as its factorization.

99211412291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 41.

The spelling of 99211412291 in words is "ninety-nine billion, two hundred eleven million, four hundred twelve thousand, two hundred ninety-one".