222212212193 has 2 divisors, whose sum is σ = 222212212194. Its totient is φ = 222212212192.

The previous prime is 222212212169. The next prime is 222212212283. The reversal of 222212212193 is 391212212222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222196276129 + 15936064 = 471377^2 + 3992^2 .

It is a cyclic number.

It is not a de Polignac number, because 222212212193 - 2¹⁸ = 222211950049 is a prime.

It is not a weakly prime, because it can be changed into another prime (222212212163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111106106096 + 111106106097.

It is an arithmetic number, because the mean of its divisors is an integer number (111106106097).

Almost surely, 2^222212212193 is an apocalyptic number.

It is an amenable number.

222212212193 is a deficient number, since it is larger than the sum of its proper divisors (1).

222212212193 is an equidigital number, since it uses as much as digits as its factorization.

222212212193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

Adding to 222212212193 its sum of digits (29), we get a palindrome (222212212222).

The spelling of 222212212193 in words is "two hundred twenty-two billion, two hundred twelve million, two hundred twelve thousand, one hundred ninety-three".