12141223220 has 48 divisors (see below), whose sum is σ = 29182204800. Its totient is φ = 4156523904.

The previous prime is 12141223219. The next prime is 12141223223. The reversal of 12141223220 is 2232214121.

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 = 12141223192 and 12141223201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12141223223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30731 + ... + 158829.

It is an arithmetic number, because the mean of its divisors is an integer number (607962600).

Almost surely, 2^12141223220 is an apocalyptic number.

12141223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12141223220 is an abundant number, since it is smaller than the sum of its proper divisors (17040981580).

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

12141223220 is a wasteful number, since it uses less digits than its factorization.

12141223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128792 (or 128790 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12141223220 its reverse (2232214121), we get a palindrome (14373437341).

Subtracting from 12141223220 its reverse (2232214121), we obtain a palindrome (9909009099).

The spelling of 12141223220 in words is "twelve billion, one hundred forty-one million, two hundred twenty-three thousand, two hundred twenty".