12221012012202 has 128 divisors (see below), whose sum is σ = 32045341409280. Its totient is φ = 3378381229440.

The previous prime is 12221012012191. The next prime is 12221012012213. The reversal of 12221012012202 is 20221021012221.

It is a happy number.

12221012012202 is a `hidden beast` number, since 122 + 210 + 120 + 12 + 202 = 666.

12221012012202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12221012012191) and next prime (12221012012213).

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 63 ways as a sum of consecutive naturals, for example, 57746143 + ... + 57957389.

It is an arithmetic number, because the mean of its divisors is an integer number (250354229760).

Almost surely, 2^{12221012012202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12221012012202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16022670704640).

12221012012202 is an abundant number, since it is smaller than the sum of its proper divisors (19824329397078).

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

12221012012202 is a wasteful number, since it uses less digits than its factorization.

12221012012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216233 (or 216227 counting only the distinct ones).

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

Adding to 12221012012202 its reverse (20221021012221), we get a palindrome (32442033024423).

The spelling of 12221012012202 in words is "twelve trillion, two hundred twenty-one billion, twelve million, twelve thousand, two hundred two".