222220201210220 has 144 divisors (see below), whose sum is σ = 484036597804032. Its totient is φ = 85690346757120.

The previous prime is 222220201210219. The next prime is 222220201210297. The reversal of 222220201210220 is 22012102022222.

222220201210220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 222220201210192 and 222220201210201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2632243610 + ... + 2632328030.

It is an arithmetic number, because the mean of its divisors is an integer number (3361365262528).

Almost surely, 2^{222220201210220} is an apocalyptic number.

222220201210220 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 222220201210220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242018298902016).

222220201210220 is an abundant number, since it is smaller than the sum of its proper divisors (261816396593812).

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

222220201210220 is a wasteful number, since it uses less digits than its factorization.

222220201210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85388 (or 85349 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222220201210220 its reverse (22012102022222), we get a palindrome (244232303232442).

The spelling of 222220201210220 in words is "two hundred twenty-two trillion, two hundred twenty billion, two hundred one million, two hundred ten thousand, two hundred twenty".