12002212121202 has 96 divisors (see below), whose sum is σ = 27410014494720. Its totient is φ = 3790769518080.

The previous prime is 12002212121173. The next prime is 12002212121243. The reversal of 12002212121202 is 20212121220021.

It is a happy number.

12002212121202 is a `hidden beast` number, since 1 + 200 + 221 + 21 + 21 + 202 = 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 47 ways as a sum of consecutive naturals, for example, 4505199 + ... + 6655917.

It is an arithmetic number, because the mean of its divisors is an integer number (285520984320).

Almost surely, 2^{12002212121202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12002212121202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13705007247360).

12002212121202 is an abundant number, since it is smaller than the sum of its proper divisors (15407802373518).

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

12002212121202 is a wasteful number, since it uses less digits than its factorization.

12002212121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150968 (or 2150965 counting only the distinct ones).

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

Adding to 12002212121202 its reverse (20212121220021), we get a palindrome (32214333341223).

The spelling of 12002212121202 in words is "twelve trillion, two billion, two hundred twelve million, one hundred twenty-one thousand, two hundred two".