12112320222 has 48 divisors (see below), whose sum is σ = 28371230160. Its totient is φ = 3721562496.

The previous prime is 12112320173. The next prime is 12112320239. The reversal of 12112320222 is 22202321121.

12112320222 is a `hidden beast` number, since 1 + 211 + 232 + 0 + 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 = 12112320195 and 12112320204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465943 + ... + 491250.

It is an arithmetic number, because the mean of its divisors is an integer number (591067295).

Almost surely, 2^12112320222 is an apocalyptic number.

12112320222 is an abundant number, since it is smaller than the sum of its proper divisors (16258909938).

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

12112320222 is a wasteful number, since it uses less digits than its factorization.

12112320222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957257 (or 957254 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12112320222 its reverse (22202321121), we get a palindrome (34314641343).

The spelling of 12112320222 in words is "twelve billion, one hundred twelve million, three hundred twenty thousand, two hundred twenty-two".