12113132220 has 108 divisors (see below), whose sum is σ = 42742083384. Its totient is φ = 2768713920.

The previous prime is 12113132219. The next prime is 12113132221. The reversal of 12113132220 is 2223131121.

It is an interprime number because it is at equal distance from previous prime (12113132219) and next prime (12113132221).

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 = 12113132193 and 12113132202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113132221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 677866 + ... + 695505.

Almost surely, 2^12113132220 is an apocalyptic number.

12113132220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12113132220 is an abundant number, since it is smaller than the sum of its proper divisors (30628951164).

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

12113132220 is a wasteful number, since it uses less digits than its factorization.

12113132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373400 (or 1373388 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12113132220 its reverse (2223131121), we get a palindrome (14336263341).

It can be divided in two parts, 121131 and 32220, that added together give a palindrome (153351).

The spelling of 12113132220 in words is "twelve billion, one hundred thirteen million, one hundred thirty-two thousand, two hundred twenty".