434221111 has 2 divisors, whose sum is σ = 434221112. Its totient is φ = 434221110.

The previous prime is 434221091. The next prime is 434221133. The reversal of 434221111 is 111122434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 434221111 - 2⁹ = 434220599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434221141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217110555 + 217110556.

It is an arithmetic number, because the mean of its divisors is an integer number (217110556).

Almost surely, 2^434221111 is an apocalyptic number.

434221111 is a deficient number, since it is larger than the sum of its proper divisors (1).

434221111 is an equidigital number, since it uses as much as digits as its factorization.

434221111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 434221111 is about 20837.9728140719. The cubic root of 434221111 is about 757.2459827883.

Adding to 434221111 its reverse (111122434), we get a palindrome (545343545).

The spelling of 434221111 in words is "four hundred thirty-four million, two hundred twenty-one thousand, one hundred eleven".