1230120522012 has 24 divisors (see below), whose sum is σ = 2870508525696. Its totient is φ = 410007701488.

The previous prime is 1230120521999. The next prime is 1230120522013. The reversal of 1230120522012 is 2102250210321.

It is a self number, because there is not a number n which added to its sum of digits gives 1230120522012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230120522013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3900978 + ... + 4204505.

It is an arithmetic number, because the mean of its divisors is an integer number (119604521904).

Almost surely, 2^{1230120522012} is an apocalyptic number.

1230120522012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230120522012 is an abundant number, since it is smaller than the sum of its proper divisors (1640388003684).

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

1230120522012 is a wasteful number, since it uses less digits than its factorization.

1230120522012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8118137 (or 8118135 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 1230120522012 its reverse (2102250210321), we get a palindrome (3332370732333).

The spelling of 1230120522012 in words is "one trillion, two hundred thirty billion, one hundred twenty million, five hundred twenty-two thousand, twelve".