220012212220 has 24 divisors (see below), whose sum is σ = 464370961824. Its totient is φ = 87558158016.

The previous prime is 220012212191. The next prime is 220012212221. The reversal of 220012212220 is 22212210022.

It is a junction number, because it is equal to n+sod(n) for n = 220012212194 and 220012212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220012212221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27916392 + ... + 27924271.

It is an arithmetic number, because the mean of its divisors is an integer number (19348790076).

Almost surely, 2^220012212220 is an apocalyptic number.

220012212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220012212220 is an abundant number, since it is smaller than the sum of its proper divisors (244358749604).

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

220012212220 is a wasteful number, since it uses less digits than its factorization.

220012212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55840869 (or 55840867 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220012212220 its reverse (22212210022), we get a palindrome (242224422242).

The spelling of 220012212220 in words is "two hundred twenty billion, twelve million, two hundred twelve thousand, two hundred twenty".