12212201110212 has 36 divisors (see below), whose sum is σ = 30877623993216. Its totient is φ = 4069692814320.

The previous prime is 12212201110211. The next prime is 12212201110237. The reversal of 12212201110212 is 21201110221221.

12212201110212 is a `hidden beast` number, since 1 + 221 + 220 + 1 + 1 + 10 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 (12212201110211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43227628 + ... + 43509219.

Almost surely, 2^{12212201110212} is an apocalyptic number.

12212201110212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12212201110212 is an abundant number, since it is smaller than the sum of its proper divisors (18665422883004).

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

12212201110212 is a wasteful number, since it uses less digits than its factorization.

12212201110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86740768 (or 86740763 counting only the distinct ones).

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

Adding to 12212201110212 its reverse (21201110221221), we get a palindrome (33413311331433).

The spelling of 12212201110212 in words is "twelve trillion, two hundred twelve billion, two hundred one million, one hundred ten thousand, two hundred twelve".