12312322212120 has 96 divisors (see below), whose sum is σ = 42967491822000. Its totient is φ = 2814245075712.

The previous prime is 12312322212083. The next prime is 12312322212131. The reversal of 12312322212120 is 2121222321321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1046960295 + ... + 1046972054.

Almost surely, 2^{12312322212120} is an apocalyptic number.

12312322212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12312322212120 is an abundant number, since it is smaller than the sum of its proper divisors (30655169609880).

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

12312322212120 is a wasteful number, since it uses less digits than its factorization.

12312322212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093932377 (or 2093932366 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12312322212120 its reverse (2121222321321), we get a palindrome (14433544533441).

The spelling of 12312322212120 in words is "twelve trillion, three hundred twelve billion, three hundred twenty-two million, two hundred twelve thousand, one hundred twenty".