14155002421221 has 8 divisors (see below), whose sum is σ = 18888593912224. Its totient is φ = 9429039605520.

The previous prime is 14155002421211. The next prime is 14155002421229. The reversal of 14155002421221 is 12212420055141.

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

It is not a de Polignac number, because 14155002421221 - 2⁹ = 14155002420709 is a prime.

It is a super-2 number, since 2×14155002421221² (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 (14155002421229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1907164495 + ... + 1907171916.

It is an arithmetic number, because the mean of its divisors is an integer number (2361074239028).

Almost surely, 2^{14155002421221} is an apocalyptic number.

It is an amenable number.

14155002421221 is a deficient number, since it is larger than the sum of its proper divisors (4733591491003).

14155002421221 is a wasteful number, since it uses less digits than its factorization.

14155002421221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814337651.

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 14155002421221 its reverse (12212420055141), we get a palindrome (26367422476362).

The spelling of 14155002421221 in words is "fourteen trillion, one hundred fifty-five billion, two million, four hundred twenty-one thousand, two hundred twenty-one".