2205204431 has 2 divisors, whose sum is σ = 2205204432. Its totient is φ = 2205204430.

The previous prime is 2205204401. The next prime is 2205204493. The reversal of 2205204431 is 1344025022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2205204431 is a prime.

It is a super-2 number, since 2×2205204431² = 9725853165004067522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2205204397 and 2205204406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2205204401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102602215 + 1102602216.

It is an arithmetic number, because the mean of its divisors is an integer number (1102602216).

Almost surely, 2^2205204431 is an apocalyptic number.

2205204431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2205204431 is an equidigital number, since it uses as much as digits as its factorization.

2205204431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2205204431 is about 46959.6042466288. The cubic root of 2205204431 is about 1301.6162207725.

Adding to 2205204431 its reverse (1344025022), we get a palindrome (3549229453).

The spelling of 2205204431 in words is "two billion, two hundred five million, two hundred four thousand, four hundred thirty-one".