12202001121222 has 96 divisors (see below), whose sum is σ = 29144908615680. Its totient is φ = 3658779149760.

The previous prime is 12202001121199. The next prime is 12202001121257. The reversal of 12202001121222 is 22212110020221.

It is a happy number.

12202001121222 is a `hidden beast` number, since 1 + 220 + 200 + 1 + 1 + 21 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12202001121195 and 12202001121204.

It is a congruent number.

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, 8890168 + ... + 10170500.

It is an arithmetic number, because the mean of its divisors is an integer number (303592798080).

Almost surely, 2^{12202001121222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12202001121222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14572454307840).

12202001121222 is an abundant number, since it is smaller than the sum of its proper divisors (16942907494458).

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

12202001121222 is a wasteful number, since it uses less digits than its factorization.

12202001121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280858 (or 1280855 counting only the distinct ones).

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

Adding to 12202001121222 its reverse (22212110020221), we get a palindrome (34414111141443).

The spelling of 12202001121222 in words is "twelve trillion, two hundred two billion, one million, one hundred twenty-one thousand, two hundred twenty-two".