12210212112210 has 288 divisors, whose sum is σ = 38782234632960. Its totient is φ = 2755575583488.

The previous prime is 12210212112181. The next prime is 12210212112211. The reversal of 12210212112210 is 1221121201221.

12210212112210 is a `hidden beast` number, since 1 + 2 + 210 + 21 + 211 + 221 + 0 = 666.

12210212112210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (12210212112211) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 8757502 + ... + 10055558.

It is an arithmetic number, because the mean of its divisors is an integer number (134660536920).

Almost surely, 2^{12210212112210} is an apocalyptic number.

12210212112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12210212112210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19391117316480).

12210212112210 is an abundant number, since it is smaller than the sum of its proper divisors (26572022520750).

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

12210212112210 is a wasteful number, since it uses less digits than its factorization.

12210212112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298172 (or 1298153 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12210212112210 its reverse (1221121201221), we get a palindrome (13431333313431).

The spelling of 12210212112210 in words is "twelve trillion, two hundred ten billion, two hundred twelve million, one hundred twelve thousand, two hundred ten".