14122215431551 has 4 divisors (see below), whose sum is σ = 14124248289432. Its totient is φ = 14120182573672.

The previous prime is 14122215431483. The next prime is 14122215431563. The reversal of 14122215431551 is 15513451222141.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14122215431551 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 14122215431551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14122215131551) 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, 1016418520 + ... + 1016432413.

It is an arithmetic number, because the mean of its divisors is an integer number (3531062072358).

Almost surely, 2^{14122215431551} is an apocalyptic number.

14122215431551 is a deficient number, since it is larger than the sum of its proper divisors (2032857881).

14122215431551 is an equidigital number, since it uses as much as digits as its factorization.

14122215431551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032857880.

The product of its digits is 48000, while the sum is 37.

Adding to 14122215431551 its reverse (15513451222141), we get a palindrome (29635666653692).

The spelling of 14122215431551 in words is "fourteen trillion, one hundred twenty-two billion, two hundred fifteen million, four hundred thirty-one thousand, five hundred fifty-one".