22001192009 has 2 divisors, whose sum is σ = 22001192010. Its totient is φ = 22001192008.

The previous prime is 22001191951. The next prime is 22001192021. The reversal of 22001192009 is 90029110022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13634065225 + 8367126784 = 116765^2 + 91472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22001192009 is a prime.

It is not a weakly prime, because it can be changed into another prime (22001102009) 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, 11000596004 + 11000596005.

It is an arithmetic number, because the mean of its divisors is an integer number (11000596005).

Almost surely, 2^22001192009 is an apocalyptic number.

It is an amenable number.

22001192009 is a deficient number, since it is larger than the sum of its proper divisors (1).

22001192009 is an equidigital number, since it uses as much as digits as its factorization.

22001192009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 22001192009 in words is "twenty-two billion, one million, one hundred ninety-two thousand, nine".