12212100210220 has 12 divisors (see below), whose sum is σ = 25645410441504. Its totient is φ = 4884840084080.

The previous prime is 12212100210203. The next prime is 12212100210257. The reversal of 12212100210220 is 2201200121221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12212100210194 and 12212100210203.

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 3 ways as a sum of consecutive naturals, for example, 305302505236 + ... + 305302505275.

It is an arithmetic number, because the mean of its divisors is an integer number (2137117536792).

Almost surely, 2^{12212100210220} is an apocalyptic number.

12212100210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212100210220 is an abundant number, since it is smaller than the sum of its proper divisors (13433310231284).

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

12212100210220 is a wasteful number, since it uses less digits than its factorization.

12212100210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610605010520 (or 610605010518 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12212100210220 its reverse (2201200121221), we get a palindrome (14413300331441).

The spelling of 12212100210220 in words is "twelve trillion, two hundred twelve billion, one hundred million, two hundred ten thousand, two hundred twenty".