2221213204 has 24 divisors (see below), whose sum is σ = 4446868608. Its totient is φ = 950996640.

The previous prime is 2221213187. The next prime is 2221213213. The reversal of 2221213204 is 4023121222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10792 + ... + 67519.

It is an arithmetic number, because the mean of its divisors is an integer number (185286192).

Almost surely, 2^2221213204 is an apocalyptic number.

It is an amenable number.

2221213204 is an abundant number, since it is smaller than the sum of its proper divisors (2225655404).

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

2221213204 is a wasteful number, since it uses less digits than its factorization.

2221213204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79335 (or 79333 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2221213204 is about 47129.7486095566. The cubic root of 2221213204 is about 1304.7583418492.

Adding to 2221213204 its reverse (4023121222), we get a palindrome (6244334426).

The spelling of 2221213204 in words is "two billion, two hundred twenty-one million, two hundred thirteen thousand, two hundred four".