12017157021501 has 8 divisors (see below), whose sum is σ = 16022896270560. Its totient is φ = 8011427893392.

The previous prime is 12017157021451. The next prime is 12017157021511. The reversal of 12017157021501 is 10512075171021.

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

It is not a de Polignac number, because 12017157021501 - 2⁶ = 12017157021437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12017157021511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907510 + ... + 4985768.

It is an arithmetic number, because the mean of its divisors is an integer number (2002862033820).

Almost surely, 2^{12017157021501} is an apocalyptic number.

It is an amenable number.

12017157021501 is a deficient number, since it is larger than the sum of its proper divisors (4005739249059).

12017157021501 is an equidigital number, since it uses as much as digits as its factorization.

12017157021501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060475.

The product of its (nonzero) digits is 4900, while the sum is 33.

The spelling of 12017157021501 in words is "twelve trillion, seventeen billion, one hundred fifty-seven million, twenty-one thousand, five hundred one".