12422134220 has 12 divisors (see below), whose sum is σ = 26086481904. Its totient is φ = 4968853680.

The previous prime is 12422134201. The next prime is 12422134229. The reversal of 12422134220 is 2243122421.

It is not an unprimeable number, because it can be changed into a prime (12422134229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310553336 + ... + 310553375.

It is an arithmetic number, because the mean of its divisors is an integer number (2173873492).

Almost surely, 2^12422134220 is an apocalyptic number.

12422134220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12422134220 is an abundant number, since it is smaller than the sum of its proper divisors (13664347684).

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

12422134220 is a wasteful number, since it uses less digits than its factorization.

12422134220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621106720 (or 621106718 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12422134220 its reverse (2243122421), we get a palindrome (14665256641).

The spelling of 12422134220 in words is "twelve billion, four hundred twenty-two million, one hundred thirty-four thousand, two hundred twenty".