12022551817 has 2 divisors, whose sum is σ = 12022551818. Its totient is φ = 12022551816.

The previous prime is 12022551809. The next prime is 12022551823. The reversal of 12022551817 is 71815522021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11893865481 + 128686336 = 109059^2 + 11344^2 .

It is a cyclic number.

It is not a de Polignac number, because 12022551817 - 2³ = 12022551809 is a prime.

It is not a weakly prime, because it can be changed into another prime (12022551857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011275908 + 6011275909.

It is an arithmetic number, because the mean of its divisors is an integer number (6011275909).

Almost surely, 2^12022551817 is an apocalyptic number.

It is an amenable number.

12022551817 is a deficient number, since it is larger than the sum of its proper divisors (1).

12022551817 is an equidigital number, since it uses as much as digits as its factorization.

12022551817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 34.

The spelling of 12022551817 in words is "twelve billion, twenty-two million, five hundred fifty-one thousand, eight hundred seventeen".