12002121122202 has 80 divisors (see below), whose sum is σ = 27108846876672. Its totient is φ = 3968701077600.

The previous prime is 12002121122183. The next prime is 12002121122209. The reversal of 12002121122202 is 20222112120021.

It is a happy number.

12002121122202 is a `hidden beast` number, since 120 + 0 + 212 + 112 + 220 + 2 = 666.

It is a super-2 number, since 2×12002121122202² (a number of 27 digits) contains 22 as substring.

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 (12002121122209) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 184125288 + ... + 184190460.

Almost surely, 2^{12002121122202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12002121122202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13554423438336).

12002121122202 is an abundant number, since it is smaller than the sum of its proper divisors (15106725754470).

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

12002121122202 is a wasteful number, since it uses less digits than its factorization.

12002121122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74265 (or 74256 counting only the distinct ones).

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

Adding to 12002121122202 its reverse (20222112120021), we get a palindrome (32224233242223).

The spelling of 12002121122202 in words is "twelve trillion, two billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred two".