12112000021220 has 24 divisors (see below), whose sum is σ = 27747490958208. Its totient is φ = 4404363644000.

The previous prime is 12112000021081. The next prime is 12112000021243. The reversal of 12112000021220 is 2212000021121.

It is a junction number, because it is equal to n+sod(n) for n = 12112000021195 and 12112000021204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27527272556 + ... + 27527272995.

It is an arithmetic number, because the mean of its divisors is an integer number (1156145456592).

Almost surely, 2^{12112000021220} is an apocalyptic number.

12112000021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112000021220 is an abundant number, since it is smaller than the sum of its proper divisors (15635490936988).

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

12112000021220 is a wasteful number, since it uses less digits than its factorization.

12112000021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55054545571 (or 55054545569 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12112000021220 its reverse (2212000021121), we get a palindrome (14324000042341).

Subtracting from 12112000021220 its reverse (2212000021121), we obtain a palindrome (9900000000099).

The spelling of 12112000021220 in words is "twelve trillion, one hundred twelve billion, twenty-one thousand, two hundred twenty".