222551210213 has 2 divisors, whose sum is σ = 222551210214. Its totient is φ = 222551210212.

The previous prime is 222551210197. The next prime is 222551210243. The reversal of 222551210213 is 312012155222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161380565284 + 61170644929 = 401722^2 + 247327^2 .

It is a cyclic number.

It is not a de Polignac number, because 222551210213 - 2⁴ = 222551210197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222551210243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111275605106 + 111275605107.

It is an arithmetic number, because the mean of its divisors is an integer number (111275605107).

Almost surely, 2^222551210213 is an apocalyptic number.

It is an amenable number.

222551210213 is a deficient number, since it is larger than the sum of its proper divisors (1).

222551210213 is an equidigital number, since it uses as much as digits as its factorization.

222551210213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 222551210213 its reverse (312012155222), we get a palindrome (534563365435).

The spelling of 222551210213 in words is "two hundred twenty-two billion, five hundred fifty-one million, two hundred ten thousand, two hundred thirteen".