2221223122 has 12 divisors (see below), whose sum is σ = 3378117690. Its totient is φ = 1095392448.

The previous prime is 2221223117. The next prime is 2221223203. The reversal of 2221223122 is 2213221222.

It can be written as a sum of positive squares in 3 ways, for example, as 1673709921 + 547513201 = 40911^2 + 23399^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2221223122.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 93547 + ... + 114862.

Almost surely, 2^2221223122 is an apocalyptic number.

2221223122 is a deficient number, since it is larger than the sum of its proper divisors (1156894568).

2221223122 is an equidigital number, since it uses as much as digits as its factorization.

2221223122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208557 (or 208484 counting only the distinct ones).

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

The square root of 2221223122 is about 47129.8538296057. The cubic root of 2221223122 is about 1304.7602838171.

Adding to 2221223122 its reverse (2213221222), we get a palindrome (4434444344).

The spelling of 2221223122 in words is "two billion, two hundred twenty-one million, two hundred twenty-three thousand, one hundred twenty-two".