12101001002120 has 32 divisors (see below), whose sum is σ = 28828855330200. Its totient is φ = 4555670965248.

The previous prime is 12101001002047. The next prime is 12101001002179. The reversal of 12101001002120 is 2120010010121.

It can be written as a sum of positive squares in 4 ways, for example, as 11938448502436 + 162552499684 = 3455206^2 + 403178^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8897794175 + ... + 8897795534.

Almost surely, 2^{12101001002120} is an apocalyptic number.

12101001002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101001002120 is an abundant number, since it is smaller than the sum of its proper divisors (16727854328080).

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

12101001002120 is a wasteful number, since it uses less digits than its factorization.

12101001002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17795589737 (or 17795589733 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12101001002120 its reverse (2120010010121), we get a palindrome (14221011012241).

The spelling of 12101001002120 in words is "twelve trillion, one hundred one billion, one million, two thousand, one hundred twenty".