2205100422 has 80 divisors (see below), whose sum is σ = 5656004640. Its totient is φ = 629016192.

The previous prime is 2205100421. The next prime is 2205100427. The reversal of 2205100422 is 2240015022.

It is a super-2 number, since 2×2205100422² = 9724935742209156168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2205100395 and 2205100404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205100421) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 970704 + ... + 972972.

It is an arithmetic number, because the mean of its divisors is an integer number (70700058).

Almost surely, 2^2205100422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2205100422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2828002320).

2205100422 is an abundant number, since it is smaller than the sum of its proper divisors (3450904218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2205100422 is a wasteful number, since it uses less digits than its factorization.

2205100422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147 (or 3138 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2205100422 is about 46958.4968030281. The cubic root of 2205100422 is about 1301.5957567696.

Adding to 2205100422 its reverse (2240015022), we get a palindrome (4445115444).

The spelling of 2205100422 in words is "two billion, two hundred five million, one hundred thousand, four hundred twenty-two".