2205722200 has 96 divisors (see below), whose sum is σ = 5700371760. Its totient is φ = 786905600.

The previous prime is 2205722177. The next prime is 2205722201. The reversal of 2205722200 is 22275022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205722201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107142 + ... + 126058.

Almost surely, 2^2205722200 is an apocalyptic number.

2205722200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2205722200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2850185880).

2205722200 is an abundant number, since it is smaller than the sum of its proper divisors (3494649560).

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

2205722200 is a wasteful number, since it uses less digits than its factorization.

2205722200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18997 (or 18988 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 2205722200 is about 46965.1168421841. The cubic root of 2205722200 is about 1301.7180834058.

Adding to 2205722200 its reverse (22275022), we get a palindrome (2227997222).

The spelling of 2205722200 in words is "two billion, two hundred five million, seven hundred twenty-two thousand, two hundred".