222255029 has 2 divisors, whose sum is σ = 222255030. Its totient is φ = 222255028.

The previous prime is 222255017. The next prime is 222255031. The reversal of 222255029 is 920552222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216384100 + 5870929 = 14710^2 + 2423^2 .

It is a cyclic number.

It is not a de Polignac number, because 222255029 - 2²⁴ = 205477813 is a prime.

Together with 222255031, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 222254992 and 222255010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222255079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111127514 + 111127515.

It is an arithmetic number, because the mean of its divisors is an integer number (111127515).

Almost surely, 2^222255029 is an apocalyptic number.

It is an amenable number.

222255029 is a deficient number, since it is larger than the sum of its proper divisors (1).

222255029 is an equidigital number, since it uses as much as digits as its factorization.

222255029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 222255029 is about 14908.2201821680. The cubic root of 222255029 is about 605.7366697464.

The spelling of 222255029 in words is "two hundred twenty-two million, two hundred fifty-five thousand, twenty-nine".