12112102012220 has 48 divisors (see below), whose sum is σ = 29069249115648. Its totient is φ = 4152691506240.

The previous prime is 12112102012211. The next prime is 12112102012259. The reversal of 12112102012220 is 2221020121121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31616339 + ... + 31997141.

It is an arithmetic number, because the mean of its divisors is an integer number (605609356576).

Almost surely, 2^{12112102012220} is an apocalyptic number.

12112102012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112102012220 is an abundant number, since it is smaller than the sum of its proper divisors (16957147103428).

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

12112102012220 is a wasteful number, since it uses less digits than its factorization.

12112102012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608010 (or 608008 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12112102012220 its reverse (2221020121121), we get a palindrome (14333122133341).

The spelling of 12112102012220 in words is "twelve trillion, one hundred twelve billion, one hundred two million, twelve thousand, two hundred twenty".