7320217122 has 48 divisors (see below), whose sum is σ = 16311455160. Its totient is φ = 2370871296.

The previous prime is 7320217117. The next prime is 7320217139. The reversal of 7320217122 is 2217120237.

7320217122 is a `hidden beast` number, since 7 + 320 + 217 + 122 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5100959241 + 2219257881 = 71421^2 + 47109^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 505008 + ... + 519300.

Almost surely, 2^7320217122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7320217122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8155727580).

7320217122 is an abundant number, since it is smaller than the sum of its proper divisors (8991238038).

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

7320217122 is a wasteful number, since it uses less digits than its factorization.

7320217122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15107 (or 15104 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 7320217122 is about 85558.2674088250. The cubic root of 7320217122 is about 1941.6665738924. Note that the first 3 decimals are identical.

Adding to 7320217122 its reverse (2217120237), we get a palindrome (9537337359).

The spelling of 7320217122 in words is "seven billion, three hundred twenty million, two hundred seventeen thousand, one hundred twenty-two".