2221230222 has 32 divisors (see below), whose sum is σ = 4944996000. Its totient is φ = 739070784.

The previous prime is 2221230211. The next prime is 2221230223. The reversal of 2221230222 is 2220321222.

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 = 2221230195 and 2221230204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221230223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6847 + ... + 67002.

It is an arithmetic number, because the mean of its divisors is an integer number (154531125).

Almost surely, 2^2221230222 is an apocalyptic number.

2221230222 is an abundant number, since it is smaller than the sum of its proper divisors (2723765778).

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

2221230222 is a wasteful number, since it uses less digits than its factorization.

2221230222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74417 (or 74411 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2221230222 is about 47129.9291533522. The cubic root of 2221230222 is about 1304.7616740103.

Adding to 2221230222 its reverse (2220321222), we get a palindrome (4441551444).

The spelling of 2221230222 in words is "two billion, two hundred twenty-one million, two hundred thirty thousand, two hundred twenty-two".