20222022220 has 24 divisors (see below), whose sum is σ = 42478985808. Its totient is φ = 8086382400.

The previous prime is 20222022203. The next prime is 20222022253. The reversal of 20222022220 is 2222022202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20222022194 and 20222022203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82551 + ... + 217390.

It is an arithmetic number, because the mean of its divisors is an integer number (1769957742).

Almost surely, 2^20222022220 is an apocalyptic number.

20222022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222022220 is an abundant number, since it is smaller than the sum of its proper divisors (22256963588).

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

20222022220 is a wasteful number, since it uses less digits than its factorization.

20222022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303321 (or 303319 counting only the distinct ones).

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

Adding to 20222022220 its reverse (2222022202), we get a palindrome (22444044422).

The spelling of 20222022220 in words is "twenty billion, two hundred twenty-two million, twenty-two thousand, two hundred twenty".