79012100221121 has 8 divisors (see below), whose sum is σ = 80744704158720. Its totient is φ = 77281641926208.

The previous prime is 79012100221051. The next prime is 79012100221133. The reversal of 79012100221121 is 12112200121097.

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

It is a cyclic number.

It is not a de Polignac number, because 79012100221121 - 2⁴⁶ = 8643356043457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79012100221321) 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, 536336216 + ... + 536483513.

It is an arithmetic number, because the mean of its divisors is an integer number (10093088019840).

Almost surely, 2^{79012100221121} is an apocalyptic number.

It is an amenable number.

79012100221121 is a deficient number, since it is larger than the sum of its proper divisors (1732603937599).

79012100221121 is a wasteful number, since it uses less digits than its factorization.

79012100221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072821343.

The product of its (nonzero) digits is 1008, while the sum is 29.

The spelling of 79012100221121 in words is "seventy-nine trillion, twelve billion, one hundred million, two hundred twenty-one thousand, one hundred twenty-one".