665201007222 has 16 divisors (see below), whose sum is σ = 1334214058800. Its totient is φ = 221098328352.

The previous prime is 665201007131. The next prime is 665201007319. The reversal of 665201007222 is 222700102566.

665201007222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158832913 + ... + 158837100.

It is an arithmetic number, because the mean of its divisors is an integer number (83388378675).

Almost surely, 2^665201007222 is an apocalyptic number.

665201007222 is an abundant number, since it is smaller than the sum of its proper divisors (669013051578).

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

665201007222 is a wasteful number, since it uses less digits than its factorization.

665201007222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317670367.

The product of its (nonzero) digits is 20160, while the sum is 33.

Adding to 665201007222 its reverse (222700102566), we get a palindrome (887901109788).

The spelling of 665201007222 in words is "six hundred sixty-five billion, two hundred one million, seven thousand, two hundred twenty-two".