20222020220 has 48 divisors (see below), whose sum is σ = 43696920960. Its totient is φ = 7856498496.

The previous prime is 20222020213. The next prime is 20222020237. The reversal of 20222020220 is 2202022202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20222020195 and 20222020204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88259 + ... + 219621.

It is an arithmetic number, because the mean of its divisors is an integer number (910352520).

Almost surely, 2^20222020220 is an apocalyptic number.

20222020220 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 20222020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21848460480).

20222020220 is an abundant number, since it is smaller than the sum of its proper divisors (23474900740).

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

20222020220 is a wasteful number, since it uses less digits than its factorization.

20222020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131594 (or 131592 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 20222020220 its reverse (2202022202), we get a palindrome (22424042422).

The spelling of 20222020220 in words is "twenty billion, two hundred twenty-two million, twenty thousand, two hundred twenty".