2022212220 has 192 divisors, whose sum is σ = 6965554176. Its totient is φ = 427806720.

The previous prime is 2022212219. The next prime is 2022212263. The reversal of 2022212220 is 222122202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2022212220.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 433219 + ... + 437861.

It is an arithmetic number, because the mean of its divisors is an integer number (36278928).

Almost surely, 2^2022212220 is an apocalyptic number.

2022212220 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 2022212220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3482777088).

2022212220 is an abundant number, since it is smaller than the sum of its proper divisors (4943341956).

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

2022212220 is a wasteful number, since it uses less digits than its factorization.

2022212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4740 (or 4738 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2022212220 is about 44969.0139985301. The cubic root of 2022212220 is about 1264.5681622635.

Adding to 2022212220 its reverse (222122202), we get a palindrome (2244334422).

The spelling of 2022212220 in words is "two billion, twenty-two million, two hundred twelve thousand, two hundred twenty".