12212026999 has 2 divisors, whose sum is σ = 12212027000. Its totient is φ = 12212026998.

The previous prime is 12212026987. The next prime is 12212027017. The reversal of 12212026999 is 99962021221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12212026999 - 2⁹ = 12212026487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212026919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106013499 + 6106013500.

It is an arithmetic number, because the mean of its divisors is an integer number (6106013500).

Almost surely, 2^12212026999 is an apocalyptic number.

12212026999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212026999 is an equidigital number, since it uses as much as digits as its factorization.

12212026999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 12212026999 in words is "twelve billion, two hundred twelve million, twenty-six thousand, nine hundred ninety-nine".