2203815222 has 64 divisors (see below), whose sum is σ = 5605954560. Its totient is φ = 628653312.

The previous prime is 2203815217. The next prime is 2203815223. The reversal of 2203815222 is 2225183022.

2203815222 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203815223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250063 + ... + 258725.

It is an arithmetic number, because the mean of its divisors is an integer number (87593040).

Almost surely, 2^2203815222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2203815222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2802977280).

2203815222 is an abundant number, since it is smaller than the sum of its proper divisors (3402139338).

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

2203815222 is a wasteful number, since it uses less digits than its factorization.

2203815222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9354 (or 9348 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2203815222 is about 46944.8103841096. The cubic root of 2203815222 is about 1301.3428376820.

Adding to 2203815222 its reverse (2225183022), we get a palindrome (4428998244).

The spelling of 2203815222 in words is "two billion, two hundred three million, eight hundred fifteen thousand, two hundred twenty-two".