222185581229 has 2 divisors, whose sum is σ = 222185581230. Its totient is φ = 222185581228.

The previous prime is 222185581199. The next prime is 222185581283. The reversal of 222185581229 is 922185581222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202952052004 + 19233529225 = 450502^2 + 138685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222185581229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222155581229) 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, 111092790614 + 111092790615.

It is an arithmetic number, because the mean of its divisors is an integer number (111092790615).

Almost surely, 2^222185581229 is an apocalyptic number.

It is an amenable number.

222185581229 is a deficient number, since it is larger than the sum of its proper divisors (1).

222185581229 is an equidigital number, since it uses as much as digits as its factorization.

222185581229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 460800, while the sum is 47.

The spelling of 222185581229 in words is "two hundred twenty-two billion, one hundred eighty-five million, five hundred eighty-one thousand, two hundred twenty-nine".