222748429 has 2 divisors, whose sum is σ = 222748430. Its totient is φ = 222748428.

The previous prime is 222748417. The next prime is 222748439. The reversal of 222748429 is 924847222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118156900 + 104591529 = 10870^2 + 10227^2 .

It is a cyclic number.

It is not a de Polignac number, because 222748429 - 2⁵ = 222748397 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 222748391 and 222748400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222748439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111374214 + 111374215.

It is an arithmetic number, because the mean of its divisors is an integer number (111374215).

Almost surely, 2^222748429 is an apocalyptic number.

It is an amenable number.

222748429 is a deficient number, since it is larger than the sum of its proper divisors (1).

222748429 is an equidigital number, since it uses as much as digits as its factorization.

222748429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 40.

The square root of 222748429 is about 14924.7589260262. The cubic root of 222748429 is about 606.1845779973.

It can be divided in two parts, 22274 and 8429, that added together give a palindrome (30703).

The spelling of 222748429 in words is "two hundred twenty-two million, seven hundred forty-eight thousand, four hundred twenty-nine".