2222221112220 has 384 divisors, whose sum is σ = 6656747360256. Its totient is φ = 553144909824.

The previous prime is 2222221112203. The next prime is 2222221112261. The reversal of 2222221112220 is 222111222222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1186449204 + ... + 1186451076.

It is an arithmetic number, because the mean of its divisors is an integer number (17335279584).

Almost surely, 2^{2222221112220} is an apocalyptic number.

2222221112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222221112220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3328373680128).

2222221112220 is an abundant number, since it is smaller than the sum of its proper divisors (4434526248036).

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

2222221112220 is a wasteful number, since it uses less digits than its factorization.

2222221112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2222221112220 its reverse (222111222222), we get a palindrome (2444332334442).

The spelling of 2222221112220 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred twelve thousand, two hundred twenty".