8071221611 has 8 divisors (see below), whose sum is σ = 8132027904. Its totient is φ = 8010553320.

The previous prime is 8071221569. The next prime is 8071221643. The reversal of 8071221611 is 1161221708.

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 8071221611 - 2¹⁰ = 8071220587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8071221661) 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, 84446 + ... + 152556.

It is an arithmetic number, because the mean of its divisors is an integer number (1016503488).

Almost surely, 2^8071221611 is an apocalyptic number.

8071221611 is a deficient number, since it is larger than the sum of its proper divisors (60806293).

8071221611 is a wasteful number, since it uses less digits than its factorization.

8071221611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69001.

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 8071221611 is about 89839.9777994185. The cubic root of 8071221611 is about 2005.9176079395.

The spelling of 8071221611 in words is "eight billion, seventy-one million, two hundred twenty-one thousand, six hundred eleven".