13154425105221 has 24 divisors (see below), whose sum is σ = 19998669037984. Its totient is φ = 8638726924080.

The previous prime is 13154425105187. The next prime is 13154425105267. The reversal of 13154425105221 is 12250152445131.

13154425105221 is a `hidden beast` number, since 1 + 3 + 1 + 5 + 4 + 425 + 1 + 0 + 5 + 221 = 666.

It is not a de Polignac number, because 13154425105221 - 2²⁹ = 13153888234309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13154425105121) 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, 403964590 + ... + 403997151.

Almost surely, 2^{13154425105221} is an apocalyptic number.

It is an amenable number.

13154425105221 is a deficient number, since it is larger than the sum of its proper divisors (6844243932763).

13154425105221 is an frugal number, since it uses more digits than its factorization.

13154425105221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807961823 (or 807961811 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 13154425105221 in words is "thirteen trillion, one hundred fifty-four billion, four hundred twenty-five million, one hundred five thousand, two hundred twenty-one".