2222331220 has 12 divisors (see below), whose sum is σ = 4666895604. Its totient is φ = 888932480.

The previous prime is 2222331211. The next prime is 2222331227. The reversal of 2222331220 is 221332222.

It can be written as a sum of positive squares in 2 ways, for example, as 954686404 + 1267644816 = 30898^2 + 35604^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222331227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55558261 + ... + 55558300.

It is an arithmetic number, because the mean of its divisors is an integer number (388907967).

Almost surely, 2^2222331220 is an apocalyptic number.

2222331220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222331220 is an abundant number, since it is smaller than the sum of its proper divisors (2444564384).

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

2222331220 is a wasteful number, since it uses less digits than its factorization.

2222331220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111116570 (or 111116568 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2222331220 is about 47141.6081609442. The cubic root of 2222331220 is about 1304.9772156345.

Adding to 2222331220 its reverse (221332222), we get a palindrome (2443663442).

The spelling of 2222331220 in words is "two billion, two hundred twenty-two million, three hundred thirty-one thousand, two hundred twenty".