2222222221220 has 48 divisors (see below), whose sum is σ = 4792067797440. Its totient is φ = 865149054336.

The previous prime is 2222222221207. The next prime is 2222222221223. The reversal of 2222222221220 is 221222222222.

It is not an unprimeable number, because it can be changed into a prime (2222222221223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4321955 + ... + 4808714.

It is an arithmetic number, because the mean of its divisors is an integer number (99834745780).

Almost surely, 2^{2222222221220} is an apocalyptic number.

2222222221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222222221220 is an abundant number, since it is smaller than the sum of its proper divisors (2569845576220).

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

2222222221220 is a wasteful number, since it uses less digits than its factorization.

2222222221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9131004 (or 9131002 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 2222222221220 its reverse (221222222222), we get a palindrome (2443444443442).

It can be divided in two parts, 2222222 and 221220, that added together give a palindrome (2443442).

The spelling of 2222222221220 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty".