12012113032220 has 48 divisors (see below), whose sum is σ = 30346390824960. Its totient is φ = 3901678818624.

The previous prime is 12012113032189. The next prime is 12012113032237. The reversal of 12012113032220 is 2223031121021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12012113032192 and 12012113032201.

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, 2257913324 + ... + 2257918643.

It is an arithmetic number, because the mean of its divisors is an integer number (632216475520).

Almost surely, 2^{12012113032220} is an apocalyptic number.

12012113032220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012113032220 is an abundant number, since it is smaller than the sum of its proper divisors (18334277792740).

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

12012113032220 is a wasteful number, since it uses less digits than its factorization.

12012113032220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515832002 (or 4515832000 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12012113032220 its reverse (2223031121021), we get a palindrome (14235144153241).

The spelling of 12012113032220 in words is "twelve trillion, twelve billion, one hundred thirteen million, thirty-two thousand, two hundred twenty".