23221210099 has 2 divisors, whose sum is σ = 23221210100. Its totient is φ = 23221210098.

The previous prime is 23221210093. The next prime is 23221210141. The reversal of 23221210099 is 99001212232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23221210099 - 2¹³ = 23221201907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23221210099.

It is not a weakly prime, because it can be changed into another prime (23221210093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610605049 + 11610605050.

It is an arithmetic number, because the mean of its divisors is an integer number (11610605050).

Almost surely, 2^23221210099 is an apocalyptic number.

23221210099 is a deficient number, since it is larger than the sum of its proper divisors (1).

23221210099 is an equidigital number, since it uses as much as digits as its factorization.

23221210099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 23221210099 in words is "twenty-three billion, two hundred twenty-one million, two hundred ten thousand, ninety-nine".