222312029 has 2 divisors, whose sum is σ = 222312030. Its totient is φ = 222312028.

The previous prime is 222312011. The next prime is 222312037. The reversal of 222312029 is 920213222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214622500 + 7689529 = 14650^2 + 2773^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222312029 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 222311995 and 222312013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222312329) 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, 111156014 + 111156015.

It is an arithmetic number, because the mean of its divisors is an integer number (111156015).

Almost surely, 2^222312029 is an apocalyptic number.

It is an amenable number.

222312029 is a deficient number, since it is larger than the sum of its proper divisors (1).

222312029 is an equidigital number, since it uses as much as digits as its factorization.

222312029 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 23.

The square root of 222312029 is about 14910.1317566278. The cubic root of 222312029 is about 605.7884481608.

The spelling of 222312029 in words is "two hundred twenty-two million, three hundred twelve thousand, twenty-nine".