131302222 has 8 divisors (see below), whose sum is σ = 198903672. Its totient is φ = 65001000.

The previous prime is 131302211. The next prime is 131302229. The reversal of 131302222 is 222203131.

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

It is a junction number, because it is equal to n+sod(n) for n = 131302196 and 131302205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131302229) 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, 324804 + ... + 325207.

It is an arithmetic number, because the mean of its divisors is an integer number (24862959).

Almost surely, 2^131302222 is an apocalyptic number.

131302222 is a deficient number, since it is larger than the sum of its proper divisors (67601450).

131302222 is a wasteful number, since it uses less digits than its factorization.

131302222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650114.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 131302222 is about 11458.7181656588. The cubic root of 131302222 is about 508.2655704233.

Adding to 131302222 its reverse (222203131), we get a palindrome (353505353).

Subtracting 131302222 from its reverse (222203131), we obtain a palindrome (90900909).

The spelling of 131302222 in words is "one hundred thirty-one million, three hundred two thousand, two hundred twenty-two".