15112253044221 has 8 divisors (see below), whose sum is σ = 20170003394304. Its totient is φ = 10064669028480.

The previous prime is 15112253044201. The next prime is 15112253044253. The reversal of 15112253044221 is 12244035221151.

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

It is not a de Polignac number, because 15112253044221 - 2⁷ = 15112253044093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15112253044201) 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, 2541580116 + ... + 2541586061.

It is an arithmetic number, because the mean of its divisors is an integer number (2521250424288).

Almost surely, 2^{15112253044221} is an apocalyptic number.

It is an amenable number.

15112253044221 is a deficient number, since it is larger than the sum of its proper divisors (5057750350083).

15112253044221 is an equidigital number, since it uses as much as digits as its factorization.

15112253044221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083167171.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 15112253044221 its reverse (12244035221151), we get a palindrome (27356288265372).

The spelling of 15112253044221 in words is "fifteen trillion, one hundred twelve billion, two hundred fifty-three million, forty-four thousand, two hundred twenty-one".