12112202222220 has 96 divisors (see below), whose sum is σ = 36673141091328. Its totient is φ = 2975245990912.

The previous prime is 12112202222191. The next prime is 12112202222231. The reversal of 12112202222220 is 2222220221121.

It is a super-2 number, since 2×12112202222220² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126278742 + ... + 126374621.

It is an arithmetic number, because the mean of its divisors is an integer number (382011886368).

Almost surely, 2^{12112202222220} is an apocalyptic number.

12112202222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112202222220 is an abundant number, since it is smaller than the sum of its proper divisors (24560938869108).

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

12112202222220 is a wasteful number, since it uses less digits than its factorization.

12112202222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252653439 (or 252653437 counting only the distinct ones).

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

Adding to 12112202222220 its reverse (2222220221121), we get a palindrome (14334422443341).

The spelling of 12112202222220 in words is "twelve trillion, one hundred twelve billion, two hundred two million, two hundred twenty-two thousand, two hundred twenty".