2222212212220 has 192 divisors, whose sum is σ = 6270232550400. Its totient is φ = 638895882240.

The previous prime is 2222212212161. The next prime is 2222212212247. The reversal of 2222212212220 is 222122122222.

2222212212220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2222212212220² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2222212212191 and 2222212212200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28168791 + ... + 28247569.

It is an arithmetic number, because the mean of its divisors is an integer number (32657461200).

Almost surely, 2^{2222212212220} is an apocalyptic number.

2222212212220 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 2222212212220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3135116275200).

2222212212220 is an abundant number, since it is smaller than the sum of its proper divisors (4048020338180).

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

2222212212220 is a wasteful number, since it uses less digits than its factorization.

2222212212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80228 (or 80226 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 2222212212220 its reverse (222122122222), we get a palindrome (2444334334442).

It can be divided in two parts, 2 and 222212212220, that added together give a palindrome (222212212222).

The spelling of 2222212212220 in words is "two trillion, two hundred twenty-two billion, two hundred twelve million, two hundred twelve thousand, two hundred twenty".