12002211222222 has 64 divisors (see below), whose sum is σ = 26227284088320. Its totient is φ = 3639269961600.

The previous prime is 12002211222203. The next prime is 12002211222241. The reversal of 12002211222222 is 22222211220021.

It is an interprime number because it is at equal distance from previous prime (12002211222203) and next prime (12002211222241).

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, 11350729 + ... + 12362987.

It is an arithmetic number, because the mean of its divisors is an integer number (409801313880).

Almost surely, 2^{12002211222222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12002211222222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13113642044160).

12002211222222 is an abundant number, since it is smaller than the sum of its proper divisors (14225072866098).

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

12002211222222 is a wasteful number, since it uses less digits than its factorization.

12002211222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014489.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12002211222222 its reverse (22222211220021), we get a palindrome (34224422442243).

The spelling of 12002211222222 in words is "twelve trillion, two billion, two hundred eleven million, two hundred twenty-two thousand, two hundred twenty-two".