20222202220 has 48 divisors (see below), whose sum is σ = 46336905216. Its totient is φ = 7351992000.

The previous prime is 20222202199. The next prime is 20222202229. The reversal of 20222202220 is 2220222202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20222202194 and 20222202203.

It is not an unprimeable number, because it can be changed into a prime (20222202229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1994965 + ... + 2005075.

It is an arithmetic number, because the mean of its divisors is an integer number (965352192).

Almost surely, 2^20222202220 is an apocalyptic number.

20222202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222202220 is an abundant number, since it is smaller than the sum of its proper divisors (26114702996).

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

20222202220 is a wasteful number, since it uses less digits than its factorization.

20222202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19222 (or 19220 counting only the distinct ones).

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

Adding to 20222202220 its reverse (2220222202), we get a palindrome (22442424422).

The spelling of 20222202220 in words is "twenty billion, two hundred twenty-two million, two hundred two thousand, two hundred twenty".