2222221122 has 32 divisors (see below), whose sum is σ = 5387204160. Its totient is φ = 673400160.

The previous prime is 2222221121. The next prime is 2222221159. The reversal of 2222221122 is 2211222222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2222221095 and 2222221104.

It is not an unprimeable number, because it can be changed into a prime (2222221121) 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 15 ways as a sum of consecutive naturals, for example, 1869963 + ... + 1871150.

It is an arithmetic number, because the mean of its divisors is an integer number (168350130).

Almost surely, 2^2222221122 is an apocalyptic number.

2222221122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2222221122 is an abundant number, since it is smaller than the sum of its proper divisors (3164983038).

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

2222221122 is a wasteful number, since it uses less digits than its factorization.

2222221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3741135 (or 3741129 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 2222221122 is about 47140.4404094828. The cubic root of 2222221122 is about 1304.9556650284.

Adding to 2222221122 its reverse (2211222222), we get a palindrome (4433443344).

The spelling of 2222221122 in words is "two billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-two".