12120010001010 has 48 divisors (see below), whose sum is σ = 31712739581016. Its totient is φ = 3211416658944.

The previous prime is 12120010000979. The next prime is 12120010001059. The reversal of 12120010001010 is 1010001002121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5855156186049 + 6264853814961 = 2419743^2 + 2502969^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12120010000983 and 12120010001001.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 428860959 + ... + 428889218.

Almost surely, 2^{12120010001010} is an apocalyptic number.

12120010001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120010001010 is an abundant number, since it is smaller than the sum of its proper divisors (19592729580006).

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

12120010001010 is a wasteful number, since it uses less digits than its factorization.

12120010001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857750347 (or 857750344 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12120010001010 its reverse (1010001002121), we get a palindrome (13130011003131).

The spelling of 12120010001010 in words is "twelve trillion, one hundred twenty billion, ten million, one thousand, ten".