8221333808631 has 4 divisors (see below), whose sum is σ = 10961778411512. Its totient is φ = 5480889205752.

The previous prime is 8221333808599. The next prime is 8221333808659. The reversal of 8221333808631 is 1368083331228.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8221333808631 - 2⁵ = 8221333808599 is a prime.

It is a super-2 number, since 2×8221333808631² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8221333858631) 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, 1370222301436 + ... + 1370222301441.

It is an arithmetic number, because the mean of its divisors is an integer number (2740444602878).

Almost surely, 2^{8221333808631} is an apocalyptic number.

8221333808631 is a deficient number, since it is larger than the sum of its proper divisors (2740444602881).

8221333808631 is a wasteful number, since it uses less digits than its factorization.

8221333808631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740444602880.

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 8221333808631 in words is "eight trillion, two hundred twenty-one billion, three hundred thirty-three million, eight hundred eight thousand, six hundred thirty-one".