222001340220 has 288 divisors, whose sum is σ = 772047763200. Its totient is φ = 52905409920.

The previous prime is 222001340219. The next prime is 222001340227. The reversal of 222001340220 is 22043100222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222001340193 and 222001340202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001340227) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3826267 + ... + 3883853.

It is an arithmetic number, because the mean of its divisors is an integer number (2680721400).

Almost surely, 2^222001340220 is an apocalyptic number.

222001340220 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 222001340220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386023881600).

222001340220 is an abundant number, since it is smaller than the sum of its proper divisors (550046422980).

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

222001340220 is a wasteful number, since it uses less digits than its factorization.

222001340220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57686 (or 57667 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 222001340220 its reverse (22043100222), we get a palindrome (244044440442).

The spelling of 222001340220 in words is "two hundred twenty-two billion, one million, three hundred forty thousand, two hundred twenty".