12120010002002 has 48 divisors (see below), whose sum is σ = 21471334380792. Its totient is φ = 5115140997120.

The previous prime is 12120010001861. The next prime is 12120010002047. The reversal of 12120010002002 is 20020001002121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12086740606801 + 33269395201 = 3476599^2 + 182399^2 .

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, 3264218 + ... + 5907210.

Almost surely, 2^{12120010002002} is an apocalyptic number.

12120010002002 is a deficient number, since it is larger than the sum of its proper divisors (9351324378790).

12120010002002 is a wasteful number, since it uses less digits than its factorization.

12120010002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643723 (or 2643716 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12120010002002 its reverse (20020001002121), we get a palindrome (32140011004123).

The spelling of 12120010002002 in words is "twelve trillion, one hundred twenty billion, ten million, two thousand, two".