13051327811221 has 8 divisors (see below), whose sum is σ = 14916324081600. Its totient is φ = 11186461758048.

The previous prime is 13051327811209. The next prime is 13051327811243. The reversal of 13051327811221 is 12211872315031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13051327811221 is a prime.

It is a super-2 number, since 2×13051327811221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13051327811201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32339431 + ... + 32740516.

It is an arithmetic number, because the mean of its divisors is an integer number (1864540510200).

Almost surely, 2^{13051327811221} is an apocalyptic number.

It is an amenable number.

13051327811221 is a deficient number, since it is larger than the sum of its proper divisors (1864996270379).

13051327811221 is an equidigital number, since it uses as much as digits as its factorization.

13051327811221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65108603.

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 13051327811221 in words is "thirteen trillion, fifty-one billion, three hundred twenty-seven million, eight hundred eleven thousand, two hundred twenty-one".