20220222220 has 96 divisors (see below), whose sum is σ = 47377612800. Its totient is φ = 7187232000.

The previous prime is 20220222193. The next prime is 20220222271. The reversal of 20220222220 is 2222202202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20220222194 and 20220222203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1749621 + ... + 1761139.

It is an arithmetic number, because the mean of its divisors is an integer number (493516800).

Almost surely, 2^20220222220 is an apocalyptic number.

20220222220 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 20220222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23688806400).

20220222220 is an abundant number, since it is smaller than the sum of its proper divisors (27157390580).

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

20220222220 is a wasteful number, since it uses less digits than its factorization.

20220222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11719 (or 11717 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 20220222220 its reverse (2222202202), we get a palindrome (22442424422).

It can be divided in two parts, 202202 and 22220, that added together give a palindrome (224422).

The spelling of 20220222220 in words is "twenty billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twenty".