222221202022229 has 2 divisors, whose sum is σ = 222221202022230. Its totient is φ = 222221202022228.

The previous prime is 222221202022217. The next prime is 222221202022243. The reversal of 222221202022229 is 922220202122222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126947497341604 + 95273704680625 = 11267098^2 + 9760825^2 .

It is a cyclic number.

It is not a de Polignac number, because 222221202022229 - 2¹⁶ = 222221201956693 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222221202022195 and 222221202022204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222221202022529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110601011114 + 111110601011115.

It is an arithmetic number, because the mean of its divisors is an integer number (111110601011115).

Almost surely, 2^{222221202022229} is an apocalyptic number.

It is an amenable number.

222221202022229 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221202022229 is an equidigital number, since it uses as much as digits as its factorization.

222221202022229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 32.

The spelling of 222221202022229 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred two million, twenty-two thousand, two hundred twenty-nine".