222404407 has 2 divisors, whose sum is σ = 222404408. Its totient is φ = 222404406.

The previous prime is 222404327. The next prime is 222404477. The reversal of 222404407 is 704404222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222404407 - 2¹¹ = 222402359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222404477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111202203 + 111202204.

It is an arithmetic number, because the mean of its divisors is an integer number (111202204).

Almost surely, 2^222404407 is an apocalyptic number.

222404407 is a deficient number, since it is larger than the sum of its proper divisors (1).

222404407 is an equidigital number, since it uses as much as digits as its factorization.

222404407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 222404407 is about 14913.2292612968. The cubic root of 222404407 is about 605.8723449192.

Adding to 222404407 its reverse (704404222), we get a palindrome (926808629).

The spelling of 222404407 in words is "two hundred twenty-two million, four hundred four thousand, four hundred seven".