13121211320012 has 6 divisors (see below), whose sum is σ = 22962119810028. Its totient is φ = 6560605660004.

The previous prime is 13121211320003. The next prime is 13121211320057. The reversal of 13121211320012 is 21002311212131.

It is a super-2 number, since 2×13121211320012² (a number of 27 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 1640151414998 + ... + 1640151415005.

It is an arithmetic number, because the mean of its divisors is an integer number (3827019968338).

Almost surely, 2^{13121211320012} is an apocalyptic number.

It is an amenable number.

13121211320012 is a deficient number, since it is larger than the sum of its proper divisors (9840908490016).

13121211320012 is a wasteful number, since it uses less digits than its factorization.

13121211320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280302830007 (or 3280302830005 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13121211320012 its reverse (21002311212131), we get a palindrome (34123522532143).

The spelling of 13121211320012 in words is "thirteen trillion, one hundred twenty-one billion, two hundred eleven million, three hundred twenty thousand, twelve".