14155521211 has 4 divisors (see below), whose sum is σ = 15244407472. Its totient is φ = 13066634952.

The previous prime is 14155521179. The next prime is 14155521217. The reversal of 14155521211 is 11212555141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11212555141 = 47 ⋅238565003.

It is a cyclic number.

It is not a de Polignac number, because 14155521211 - 2⁵ = 14155521179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14155521211.

It is not an unprimeable number, because it can be changed into a prime (14155521217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544443111 + ... + 544443136.

It is an arithmetic number, because the mean of its divisors is an integer number (3811101868).

Almost surely, 2^14155521211 is an apocalyptic number.

14155521211 is a deficient number, since it is larger than the sum of its proper divisors (1088886261).

14155521211 is a wasteful number, since it uses less digits than its factorization.

14155521211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088886260.

The product of its digits is 2000, while the sum is 28.

The spelling of 14155521211 in words is "fourteen billion, one hundred fifty-five million, five hundred twenty-one thousand, two hundred eleven".