20222201102220 has 144 divisors (see below), whose sum is σ = 66068511032160. Its totient is φ = 4977070230528.

The previous prime is 20222201102177. The next prime is 20222201102221. The reversal of 20222201102220 is 2220110222202.

20222201102220 is a `hidden beast` number, since 20 + 222 + 201 + 1 + 0 + 2 + 220 = 666.

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 = 20222201102193 and 20222201102202.

It is not an unprimeable number, because it can be changed into a prime (20222201102221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16075747 + ... + 17287973.

It is an arithmetic number, because the mean of its divisors is an integer number (458809104390).

Almost surely, 2^{20222201102220} is an apocalyptic number.

20222201102220 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 20222201102220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33034255516080).

20222201102220 is an abundant number, since it is smaller than the sum of its proper divisors (45846309929940).

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

20222201102220 is a wasteful number, since it uses less digits than its factorization.

20222201102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219384 (or 1219379 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20222201102220 its reverse (2220110222202), we get a palindrome (22442311324422).

The spelling of 20222201102220 in words is "twenty trillion, two hundred twenty-two billion, two hundred one million, one hundred two thousand, two hundred twenty".