12222437280 has 48 divisors (see below), whose sum is σ = 38500678944. Its totient is φ = 3259316480.

The previous prime is 12222437257. The next prime is 12222437281. The reversal of 12222437280 is 8273422221.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (12222437281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12731226 + ... + 12732185.

It is an arithmetic number, because the mean of its divisors is an integer number (802097478).

Almost surely, 2^12222437280 is an apocalyptic number.

12222437280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222437280 is an abundant number, since it is smaller than the sum of its proper divisors (26278241664).

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

12222437280 is a wasteful number, since it uses less digits than its factorization.

12222437280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25463429 (or 25463421 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The spelling of 12222437280 in words is "twelve billion, two hundred twenty-two million, four hundred thirty-seven thousand, two hundred eighty".