12221100000220 has 48 divisors (see below), whose sum is σ = 26416740188160. Its totient is φ = 4746757909824.

The previous prime is 12221100000211. The next prime is 12221100000251. The reversal of 12221100000220 is 2200000112221.

It is a happy number.

12221100000220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12221100000220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51066330 + ... + 51305089.

It is an arithmetic number, because the mean of its divisors is an integer number (550348753920).

Almost surely, 2^{12221100000220} is an apocalyptic number.

12221100000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221100000220 is an abundant number, since it is smaller than the sum of its proper divisors (14195640187940).

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

12221100000220 is a wasteful number, since it uses less digits than its factorization.

12221100000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102371602 (or 102371600 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12221100000220 its reverse (2200000112221), we get a palindrome (14421100112441).

The spelling of 12221100000220 in words is "twelve trillion, two hundred twenty-one billion, one hundred million, two hundred twenty", and thus it is an aban number.