2211204222 has 96 divisors (see below), whose sum is σ = 5147670528. Its totient is φ = 684307008.

The previous prime is 2211204217. The next prime is 2211204223. The reversal of 2211204222 is 2224021122.

2211204222 is a `hidden beast` number, since 221 + 1 + 20 + 422 + 2 = 666.

2211204222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2211204222² = 9778848222781250568, 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 = 2211204195 and 2211204204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211204223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3969568 + ... + 3970124.

It is an arithmetic number, because the mean of its divisors is an integer number (53621568).

Almost surely, 2^2211204222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211204222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2573835264).

2211204222 is an abundant number, since it is smaller than the sum of its proper divisors (2936466306).

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

2211204222 is a wasteful number, since it uses less digits than its factorization.

2211204222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2211204222 is about 47023.4433235168. The cubic root of 2211204222 is about 1302.7956055328.

Adding to 2211204222 its reverse (2224021122), we get a palindrome (4435225344).

The spelling of 2211204222 in words is "two billion, two hundred eleven million, two hundred four thousand, two hundred twenty-two".