12010221220212 has 96 divisors (see below), whose sum is σ = 31524064938240. Its totient is φ = 4003148065536.

The previous prime is 12010221220181. The next prime is 12010221220241. The reversal of 12010221220212 is 21202212201021.

It is a happy number.

12010221220212 is a `hidden beast` number, since 1 + 2 + 0 + 10 + 221 + 220 + 212 = 666.

12010221220212 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174286948 + ... + 174355844.

It is an arithmetic number, because the mean of its divisors is an integer number (328375676440).

Almost surely, 2^{12010221220212} is an apocalyptic number.

12010221220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12010221220212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15762032469120).

12010221220212 is an abundant number, since it is smaller than the sum of its proper divisors (19513843718028).

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

12010221220212 is an equidigital number, since it uses as much as digits as its factorization.

12010221220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88849 (or 88829 counting only the distinct ones).

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

Adding to 12010221220212 its reverse (21202212201021), we get a palindrome (33212433421233).

The spelling of 12010221220212 in words is "twelve trillion, ten billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twelve".