222320029 has 2 divisors, whose sum is σ = 222320030. Its totient is φ = 222320028.

The previous prime is 222320027. The next prime is 222320167. The reversal of 222320029 is 920023222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182655225 + 39664804 = 13515^2 + 6298^2 .

It is a cyclic number.

It is not a de Polignac number, because 222320029 - 2¹ = 222320027 is a prime.

Together with 222320027, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 222319991 and 222320009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222320027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111160014 + 111160015.

It is an arithmetic number, because the mean of its divisors is an integer number (111160015).

Almost surely, 2^222320029 is an apocalyptic number.

It is an amenable number.

222320029 is a deficient number, since it is larger than the sum of its proper divisors (1).

222320029 is an equidigital number, since it uses as much as digits as its factorization.

222320029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 222320029 is about 14910.4000281683. The cubic root of 222320029 is about 605.7957145984.

The spelling of 222320029 in words is "two hundred twenty-two million, three hundred twenty thousand, twenty-nine".