12111120210222 has 32 divisors (see below), whose sum is σ = 29360291420160. Its totient is φ = 3670036427160.

The previous prime is 12111120210173. The next prime is 12111120210227. The reversal of 12111120210222 is 22201202111121.

12111120210222 is a `hidden beast` number, since 1 + 2 + 111 + 120 + 210 + 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 = 12111120210195 and 12111120210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111120210227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10194545038 + ... + 10194546225.

It is an arithmetic number, because the mean of its divisors is an integer number (917509106880).

Almost surely, 2^{12111120210222} is an apocalyptic number.

12111120210222 is an abundant number, since it is smaller than the sum of its proper divisors (17249171209938).

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

12111120210222 is a wasteful number, since it uses less digits than its factorization.

12111120210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20389091285 (or 20389091279 counting only the distinct ones).

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

Adding to 12111120210222 its reverse (22201202111121), we get a palindrome (34312322321343).

The spelling of 12111120210222 in words is "twelve trillion, one hundred eleven billion, one hundred twenty million, two hundred ten thousand, two hundred twenty-two".