12102212210220 has 192 divisors, whose sum is σ = 43235973849600. Its totient is φ = 2779455409920.

The previous prime is 12102212210191. The next prime is 12102212210243. The reversal of 12102212210220 is 2201221220121.

It is a happy number.

12102212210220 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 221 + 221 + 0 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12102212210193 and 12102212210202.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53503179 + ... + 53728898.

It is an arithmetic number, because the mean of its divisors is an integer number (225187363800).

Almost surely, 2^{12102212210220} is an apocalyptic number.

12102212210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102212210220 is an abundant number, since it is smaller than the sum of its proper divisors (31133761639380).

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

12102212210220 is a wasteful number, since it uses less digits than its factorization.

12102212210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107232125 (or 107232117 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12102212210220 its reverse (2201221220121), we get a palindrome (14303433430341).

Subtracting from 12102212210220 its reverse (2201221220121), we obtain a palindrome (9900990990099).

The spelling of 12102212210220 in words is "twelve trillion, one hundred two billion, two hundred twelve million, two hundred ten thousand, two hundred twenty".