12032312001220 has 144 divisors (see below), whose sum is σ = 30678248140848. Its totient is φ = 3948806184960.

The previous prime is 12032312001217. The next prime is 12032312001287. The reversal of 12032312001220 is 2210021323021.

It can be written as a sum of positive squares in 8 ways, for example, as 271349311744 + 11760962689476 = 520912^2 + 3429426^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 695557 + ... + 4954636.

It is an arithmetic number, because the mean of its divisors is an integer number (213043389867).

Almost surely, 2^{12032312001220} is an apocalyptic number.

12032312001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12032312001220 is an abundant number, since it is smaller than the sum of its proper divisors (18645936139628).

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

12032312001220 is a wasteful number, since it uses less digits than its factorization.

12032312001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5650310 (or 5650301 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12032312001220 its reverse (2210021323021), we get a palindrome (14242333324241).

The spelling of 12032312001220 in words is "twelve trillion, thirty-two billion, three hundred twelve million, one thousand, two hundred twenty".