13101312301221 has 16 divisors (see below), whose sum is σ = 17480831451840. Its totient is φ = 8728002602880.

The previous prime is 13101312301201. The next prime is 13101312301237. The reversal of 13101312301221 is 12210321310131.

It is a de Polignac number, because none of the positive numbers 2^k-13101312301221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13101312301201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27327646 + ... + 27802928.

It is an arithmetic number, because the mean of its divisors is an integer number (1092551965740).

Almost surely, 2^{13101312301221} is an apocalyptic number.

It is an amenable number.

13101312301221 is a deficient number, since it is larger than the sum of its proper divisors (4379519150619).

13101312301221 is a wasteful number, since it uses less digits than its factorization.

13101312301221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481796.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 13101312301221 its reverse (12210321310131), we get a palindrome (25311633611352).

The spelling of 13101312301221 in words is "thirteen trillion, one hundred one billion, three hundred twelve million, three hundred one thousand, two hundred twenty-one".