12220122022220 has 48 divisors (see below), whose sum is σ = 30603436028928. Its totient is φ = 4007592811200.

The previous prime is 12220122022169. The next prime is 12220122022223. The reversal of 12220122022220 is 2222022102221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12220122022192 and 12220122022201.

It is not an unprimeable number, because it can be changed into a prime (12220122022223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1897531256 + ... + 1897537695.

It is an arithmetic number, because the mean of its divisors is an integer number (637571583936).

Almost surely, 2^{12220122022220} is an apocalyptic number.

12220122022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220122022220 is an abundant number, since it is smaller than the sum of its proper divisors (18383314006708).

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

12220122022220 is a wasteful number, since it uses less digits than its factorization.

12220122022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795068990 (or 3795068988 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12220122022220 its reverse (2222022102221), we get a palindrome (14442144124441).

The spelling of 12220122022220 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-two million, twenty-two thousand, two hundred twenty".