130222320 has 160 divisors (see below), whose sum is σ = 435400704. Its totient is φ = 32102400.

The previous prime is 130222271. The next prime is 130222327. The reversal of 130222320 is 23222031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 130222320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130222327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170740 + ... + 171500.

Almost surely, 2^130222320 is an apocalyptic number.

130222320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130222320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217700352).

130222320 is an abundant number, since it is smaller than the sum of its proper divisors (305178384).

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

130222320 is a wasteful number, since it uses less digits than its factorization.

130222320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 130222320 is about 11411.4994632607. The cubic root of 130222320 is about 506.8683138575.

Adding to 130222320 its reverse (23222031), we get a palindrome (153444351).

The spelling of 130222320 in words is "one hundred thirty million, two hundred twenty-two thousand, three hundred twenty".