8299121022691 has 2 divisors, whose sum is σ = 8299121022692. Its totient is φ = 8299121022690.

The previous prime is 8299121022641. The next prime is 8299121022701. The reversal of 8299121022691 is 1962201219928.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8299121022691 - 2²⁹ = 8298584151779 is a prime.

It is a super-3 number, since 3×8299121022691³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (8299121022631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4149560511345 + 4149560511346.

It is an arithmetic number, because the mean of its divisors is an integer number (4149560511346).

Almost surely, 2^{8299121022691} is an apocalyptic number.

8299121022691 is a deficient number, since it is larger than the sum of its proper divisors (1).

8299121022691 is an equidigital number, since it uses as much as digits as its factorization.

8299121022691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 52.

The spelling of 8299121022691 in words is "eight trillion, two hundred ninety-nine billion, one hundred twenty-one million, twenty-two thousand, six hundred ninety-one".