12102221220210 has 192 divisors, whose sum is σ = 37298528317440. Its totient is φ = 2689797456000.

The previous prime is 12102221220197. The next prime is 12102221220227. The reversal of 12102221220210 is 1202212220121.

It is a happy number.

12102221220210 is a `hidden beast` number, since 1 + 2 + 10 + 2 + 221 + 220 + 210 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9794196 + ... + 10960415.

It is an arithmetic number, because the mean of its divisors is an integer number (194263168320).

Almost surely, 2^{12102221220210} is an apocalyptic number.

12102221220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102221220210 is an abundant number, since it is smaller than the sum of its proper divisors (25196307097230).

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

12102221220210 is a wasteful number, since it uses less digits than its factorization.

12102221220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20754685 (or 20754682 counting only the distinct ones).

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

Adding to 12102221220210 its reverse (1202212220121), we get a palindrome (13304433440331).

The spelling of 12102221220210 in words is "twelve trillion, one hundred two billion, two hundred twenty-one million, two hundred twenty thousand, two hundred ten".