716112120212221 has 4 divisors (see below), whose sum is σ = 728249613775200. Its totient is φ = 703974626649244.

The previous prime is 716112120212173. The next prime is 716112120212243. The reversal of 716112120212221 is 122212021211617.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 716112120212221 - 2²⁵ = 716112086657789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716112120218221) 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, 6068746781401 + ... + 6068746781518.

It is an arithmetic number, because the mean of its divisors is an integer number (182062403443800).

Almost surely, 2^{716112120212221} is an apocalyptic number.

It is an amenable number.

716112120212221 is a deficient number, since it is larger than the sum of its proper divisors (12137493562979).

716112120212221 is a wasteful number, since it uses less digits than its factorization.

716112120212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12137493562978.

The product of its (nonzero) digits is 2688, while the sum is 31.

Adding to 716112120212221 its reverse (122212021211617), we get a palindrome (838324141423838).

The spelling of 716112120212221 in words is "seven hundred sixteen trillion, one hundred twelve billion, one hundred twenty million, two hundred twelve thousand, two hundred twenty-one".