13212301221988 has 48 divisors (see below), whose sum is σ = 25952674587840. Its totient is φ = 5833517961600.

The previous prime is 13212301221937. The next prime is 13212301221989. The reversal of 13212301221988 is 88912210321231.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (13212301221989) 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, 18948283 + ... + 19633186.

It is an arithmetic number, because the mean of its divisors is an integer number (540680720580).

Almost surely, 2^{13212301221988} is an apocalyptic number.

It is an amenable number.

13212301221988 is a deficient number, since it is larger than the sum of its proper divisors (12740373365852).

13212301221988 is a wasteful number, since it uses less digits than its factorization.

13212301221988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38581708 (or 38581706 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 13212301221988 in words is "thirteen trillion, two hundred twelve billion, three hundred one million, two hundred twenty-one thousand, nine hundred eighty-eight".