12000312231220 has 96 divisors (see below), whose sum is σ = 25975457464320. Its totient is φ = 4655166543360.

The previous prime is 12000312231197. The next prime is 12000312231233. The reversal of 12000312231220 is 2213221300021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28567629 + ... + 28984651.

It is an arithmetic number, because the mean of its divisors is an integer number (270577681920).

Almost surely, 2^{12000312231220} is an apocalyptic number.

12000312231220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000312231220 is an abundant number, since it is smaller than the sum of its proper divisors (13975145233100).

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

12000312231220 is a wasteful number, since it uses less digits than its factorization.

12000312231220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417425 (or 417423 counting only the distinct ones).

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

Adding to 12000312231220 its reverse (2213221300021), we get a palindrome (14213533531241).

The spelling of 12000312231220 in words is "twelve trillion, three hundred twelve million, two hundred thirty-one thousand, two hundred twenty".