12112002122220 has 1152 divisors, whose sum is σ = 50858112614400. Its totient is φ = 2299068334080.

The previous prime is 12112002122219. The next prime is 12112002122267. The reversal of 12112002122220 is 2222120021121.

It is a happy number.

12112002122220 is a `hidden beast` number, since 1 + 211 + 20 + 0 + 212 + 2 + 220 = 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 = 12112002122193 and 12112002122202.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 856388469 + ... + 856402611.

It is an arithmetic number, because the mean of its divisors is an integer number (44147667200).

Almost surely, 2^{12112002122220} is an apocalyptic number.

12112002122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12112002122220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25429056307200).

12112002122220 is an abundant number, since it is smaller than the sum of its proper divisors (38746110492180).

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

12112002122220 is a wasteful number, since it uses less digits than its factorization.

12112002122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14300 (or 14281 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12112002122220 its reverse (2222120021121), we get a palindrome (14334122143341).

The spelling of 12112002122220 in words is "twelve trillion, one hundred twelve billion, two million, one hundred twenty-two thousand, two hundred twenty".