12220102221020 has 12 divisors (see below), whose sum is σ = 25662214664184. Its totient is φ = 4888040888400.

The previous prime is 12220102221011. The next prime is 12220102221031. The reversal of 12220102221020 is 2012220102221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12220102221020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305502555506 + ... + 305502555545.

It is an arithmetic number, because the mean of its divisors is an integer number (2138517888682).

Almost surely, 2^{12220102221020} is an apocalyptic number.

12220102221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220102221020 is an abundant number, since it is smaller than the sum of its proper divisors (13442112443164).

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

12220102221020 is a wasteful number, since it uses less digits than its factorization.

12220102221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611005111060 (or 611005111058 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12220102221020 its reverse (2012220102221), we get a palindrome (14232322323241).

The spelling of 12220102221020 in words is "twelve trillion, two hundred twenty billion, one hundred two million, two hundred twenty-one thousand, twenty".