13121212012002 has 48 divisors (see below), whose sum is σ = 30102088659552. Its totient is φ = 4116392396160.

The previous prime is 13121212012001. The next prime is 13121212012033. The reversal of 13121212012002 is 20021021212131.

13121212012002 is a `hidden beast` number, since 131 + 212 + 120 + 1 + 200 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13121212012001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20806693 + ... + 21428039.

It is an arithmetic number, because the mean of its divisors is an integer number (627126847074).

Almost surely, 2^{13121212012002} is an apocalyptic number.

13121212012002 is an abundant number, since it is smaller than the sum of its proper divisors (16980876647550).

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

13121212012002 is a wasteful number, since it uses less digits than its factorization.

13121212012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690383 (or 690380 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 13121212012002 its reverse (20021021212131), we get a palindrome (33142233224133).

The spelling of 13121212012002 in words is "thirteen trillion, one hundred twenty-one billion, two hundred twelve million, twelve thousand, two".