12214221320 has 64 divisors (see below), whose sum is σ = 31431456000. Its totient is φ = 4184605440.

The previous prime is 12214221289. The next prime is 12214221347. The reversal of 12214221320 is 2312241221.

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 = 12214221292 and 12214221301.

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, 376130 + ... + 407310.

It is an arithmetic number, because the mean of its divisors is an integer number (491116500).

Almost surely, 2^12214221320 is an apocalyptic number.

12214221320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12214221320 is an abundant number, since it is smaller than the sum of its proper divisors (19217234680).

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

12214221320 is a wasteful number, since it uses less digits than its factorization.

12214221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32598 (or 32594 counting only the distinct ones).

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

Adding to 12214221320 its reverse (2312241221), we get a palindrome (14526462541).

The spelling of 12214221320 in words is "twelve billion, two hundred fourteen million, two hundred twenty-one thousand, three hundred twenty".