2205100405 has 32 divisors (see below), whose sum is σ = 2777898240. Its totient is φ = 1678225920.

The previous prime is 2205100399. The next prime is 2205100421. The reversal of 2205100405 is 5040015022.

It is not a de Polignac number, because 2205100405 - 2¹⁹ = 2204576117 is a prime.

It is a super-2 number, since 2×2205100405² = 9724935592262328050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4824937 + ... + 4825393.

It is an arithmetic number, because the mean of its divisors is an integer number (86809320).

Almost surely, 2^2205100405 is an apocalyptic number.

It is an amenable number.

2205100405 is a deficient number, since it is larger than the sum of its proper divisors (572797835).

2205100405 is a wasteful number, since it uses less digits than its factorization.

2205100405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2205100405 is about 46958.4966220172. The cubic root of 2205100405 is about 1301.5957534247.

Adding to 2205100405 its reverse (5040015022), we get a palindrome (7245115427).

The spelling of 2205100405 in words is "two billion, two hundred five million, one hundred thousand, four hundred five".