12220202001020 has 144 divisors (see below), whose sum is σ = 28311875609472. Its totient is φ = 4427852083200.

The previous prime is 12220202000983. The next prime is 12220202001089. The reversal of 12220202001020 is 2010020202221.

It is a junction number, because it is equal to n+sod(n) for n = 12220202000986 and 12220202001004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38417549 + ... + 38734331.

It is an arithmetic number, because the mean of its divisors is an integer number (196610247288).

Almost surely, 2^{12220202001020} is an apocalyptic number.

12220202001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12220202001020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14155937804736).

12220202001020 is an abundant number, since it is smaller than the sum of its proper divisors (16091673608452).

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

12220202001020 is a wasteful number, since it uses less digits than its factorization.

12220202001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317032 (or 317017 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12220202001020 its reverse (2010020202221), we get a palindrome (14230222203241).

The spelling of 12220202001020 in words is "twelve trillion, two hundred twenty billion, two hundred two million, one thousand, twenty".