4222213231220 has 24 divisors (see below), whose sum is σ = 8872158510600. Its totient is φ = 1687835630592.

The previous prime is 4222213231193. The next prime is 4222213231231. The reversal of 4222213231220 is 221323122224.

4222213231220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1156373321104 + 3065839910116 = 1075348^2 + 1750954^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4222213231220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65570885 + ... + 65635244.

It is an arithmetic number, because the mean of its divisors is an integer number (369673271275).

Almost surely, 2^{4222213231220} is an apocalyptic number.

It is an amenable number.

4222213231220 is an abundant number, since it is smaller than the sum of its proper divisors (4649945279380).

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

4222213231220 is a wasteful number, since it uses less digits than its factorization.

4222213231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131207747 (or 131207745 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 4222213231220 its reverse (221323122224), we get a palindrome (4443536353444).

The spelling of 4222213231220 in words is "four trillion, two hundred twenty-two billion, two hundred thirteen million, two hundred thirty-one thousand, two hundred twenty".