2321221222 has 8 divisors (see below), whose sum is σ = 3665086200. Its totient is φ = 1099525824.

The previous prime is 2321221183. The next prime is 2321221267. The reversal of 2321221222 is 2221221232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2321221222² = 10776135922926346568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 2321221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30542347 + ... + 30542422.

It is an arithmetic number, because the mean of its divisors is an integer number (458135775).

Almost surely, 2^2321221222 is an apocalyptic number.

2321221222 is a deficient number, since it is larger than the sum of its proper divisors (1343864978).

2321221222 is a wasteful number, since it uses less digits than its factorization.

2321221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61084790.

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

The square root of 2321221222 is about 48179.0537682093. The cubic root of 2321221222 is about 1324.0534304065.

Adding to 2321221222 its reverse (2221221232), we get a palindrome (4542442454).

The spelling of 2321221222 in words is "two billion, three hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty-two".