2331221222 has 8 divisors (see below), whose sum is σ = 3814725672. Its totient is φ = 1059646000.

The previous prime is 2331221213. The next prime is 2331221227. The reversal of 2331221222 is 2221221332.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2331221194 and 2331221203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331221227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52982279 + ... + 52982322.

It is an arithmetic number, because the mean of its divisors is an integer number (476840709).

Almost surely, 2^2331221222 is an apocalyptic number.

2331221222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2331221222 is a deficient number, since it is larger than the sum of its proper divisors (1483504450).

2331221222 is a wasteful number, since it uses less digits than its factorization.

2331221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105964614.

The product of its digits is 576, while the sum is 20.

The square root of 2331221222 is about 48282.7217749787. The cubic root of 2331221222 is about 1325.9520812557.

Adding to 2331221222 its reverse (2221221332), we get a palindrome (4552442554).

The spelling of 2331221222 in words is "two billion, three hundred thirty-one million, two hundred twenty-one thousand, two hundred twenty-two".