222144441220 has 24 divisors (see below), whose sum is σ = 502388198424. Its totient is φ = 82022562816.

The previous prime is 222144441209. The next prime is 222144441257. The reversal of 222144441220 is 22144441222.

It is a happy number.

222144441220 is digitally balanced in base 3, 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 2327869504 + 219816571716 = 48248^2 + 468846^2 .

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, 427200589 + ... + 427201108.

It is an arithmetic number, because the mean of its divisors is an integer number (20932841601).

Almost surely, 2^222144441220 is an apocalyptic number.

222144441220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222144441220 is an abundant number, since it is smaller than the sum of its proper divisors (280243757204).

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

222144441220 is a wasteful number, since it uses less digits than its factorization.

222144441220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854401719 (or 854401717 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 222144441220 its reverse (22144441222), we get a palindrome (244288882442).

The spelling of 222144441220 in words is "two hundred twenty-two billion, one hundred forty-four million, four hundred forty-one thousand, two hundred twenty".