222694429 has 2 divisors, whose sum is σ = 222694430. Its totient is φ = 222694428.

The previous prime is 222694403. The next prime is 222694471. The reversal of 222694429 is 924496222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163788804 + 58905625 = 12798^2 + 7675^2 .

It is a cyclic number.

It is not a de Polignac number, because 222694429 - 2⁵ = 222694397 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 222694391 and 222694400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222694529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111347214 + 111347215.

It is an arithmetic number, because the mean of its divisors is an integer number (111347215).

Almost surely, 2^222694429 is an apocalyptic number.

It is an amenable number.

222694429 is a deficient number, since it is larger than the sum of its proper divisors (1).

222694429 is an equidigital number, since it uses as much as digits as its factorization.

222694429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 40.

The square root of 222694429 is about 14922.9497419243. The cubic root of 222694429 is about 606.1355890805.

The spelling of 222694429 in words is "two hundred twenty-two million, six hundred ninety-four thousand, four hundred twenty-nine".