2223212222 has 48 divisors (see below), whose sum is σ = 4301443440. Its totient is φ = 851961600.

The previous prime is 2223212219. The next prime is 2223212267. The reversal of 2223212222 is 2222123222.

It is a junction number, because it is equal to n+sod(n) for n = 2223212194 and 2223212203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48854 + ... + 82662.

It is an arithmetic number, because the mean of its divisors is an integer number (89613405).

Almost surely, 2^2223212222 is an apocalyptic number.

2223212222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2223212222 is a deficient number, since it is larger than the sum of its proper divisors (2078231218).

2223212222 is a wasteful number, since it uses less digits than its factorization.

2223212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33897 (or 33890 counting only the distinct ones).

The product of its digits is 768, while the sum is 20.

The square root of 2223212222 is about 47150.9514432106. The cubic root of 2223212222 is about 1305.1496375243.

Adding to 2223212222 its reverse (2222123222), we get a palindrome (4445335444).

The spelling of 2223212222 in words is "two billion, two hundred twenty-three million, two hundred twelve thousand, two hundred twenty-two".