8220712529932 has 96 divisors (see below), whose sum is σ = 16850360016000. Its totient is φ = 3507766891776.

The previous prime is 8220712529917. The next prime is 8220712529941. The reversal of 8220712529932 is 2399252170228.

It is a super-2 number, since 2×8220712529932² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8220712529932.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 639588418 + ... + 639601270.

It is an arithmetic number, because the mean of its divisors is an integer number (175524583500).

Almost surely, 2^{8220712529932} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8220712529932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8425180008000).

8220712529932 is an abundant number, since it is smaller than the sum of its proper divisors (8629647486068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8220712529932 is a wasteful number, since it uses less digits than its factorization.

8220712529932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14880 (or 14864 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 8220712529932 in words is "eight trillion, two hundred twenty billion, seven hundred twelve million, five hundred twenty-nine thousand, nine hundred thirty-two".