12229593221 has 2 divisors, whose sum is σ = 12229593222. Its totient is φ = 12229593220.

The previous prime is 12229593209. The next prime is 12229593253. The reversal of 12229593221 is 12239592221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8443036996 + 3786556225 = 91886^2 + 61535^2 .

It is a cyclic number.

It is not a de Polignac number, because 12229593221 - 2⁶ = 12229593157 is a prime.

It is a super-2 number, since 2×12229593221² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12229595221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6114796610 + 6114796611.

It is an arithmetic number, because the mean of its divisors is an integer number (6114796611).

Almost surely, 2^12229593221 is an apocalyptic number.

It is an amenable number.

12229593221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12229593221 is an equidigital number, since it uses as much as digits as its factorization.

12229593221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The spelling of 12229593221 in words is "twelve billion, two hundred twenty-nine million, five hundred ninety-three thousand, two hundred twenty-one".