12002111211222 has 48 divisors (see below), whose sum is σ = 28379800837440. Its totient is φ = 3635570790000.

The previous prime is 12002111211217. The next prime is 12002111211227. The reversal of 12002111211222 is 22211211120021.

12002111211222 is a `hidden beast` number, since 1 + 20 + 0 + 211 + 1 + 211 + 222 = 666.

It is an interprime number because it is at equal distance from previous prime (12002111211217) and next prime (12002111211227).

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 = 12002111211195 and 12002111211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002111211227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11434404 + ... + 12439847.

It is an arithmetic number, because the mean of its divisors is an integer number (591245850780).

Almost surely, 2^{12002111211222} is an apocalyptic number.

12002111211222 is an abundant number, since it is smaller than the sum of its proper divisors (16377689626218).

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

12002111211222 is a wasteful number, since it uses less digits than its factorization.

12002111211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23876809 (or 23876806 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12002111211222 its reverse (22211211120021), we get a palindrome (34213322331243).

The spelling of 12002111211222 in words is "twelve trillion, two billion, one hundred eleven million, two hundred eleven thousand, two hundred twenty-two".