320131001222 has 8 divisors (see below), whose sum is σ = 508443354936. Its totient is φ = 150649882912.

The previous prime is 320131001167. The next prime is 320131001227. The reversal of 320131001222 is 222100131023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 320131001222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320131001227) 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, 4707808808 + ... + 4707808875.

It is an arithmetic number, because the mean of its divisors is an integer number (63555419367).

Almost surely, 2^320131001222 is an apocalyptic number.

320131001222 is a deficient number, since it is larger than the sum of its proper divisors (188312353714).

320131001222 is a wasteful number, since it uses less digits than its factorization.

320131001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9415617702.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 320131001222 its reverse (222100131023), we get a palindrome (542231132245).

The spelling of 320131001222 in words is "three hundred twenty billion, one hundred thirty-one million, one thousand, two hundred twenty-two".