130722122 has 8 divisors (see below), whose sum is σ = 198769476. Its totient is φ = 64465632.

The previous prime is 130722103. The next prime is 130722139. The reversal of 130722122 is 221227031.

It can be written as a sum of positive squares in 2 ways, for example, as 110481121 + 20241001 = 10511^2 + 4499^2 .

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 = 130722094 and 130722103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447533 + ... + 447824.

Almost surely, 2^130722122 is an apocalyptic number.

130722122 is a deficient number, since it is larger than the sum of its proper divisors (68047354).

130722122 is an equidigital number, since it uses as much as digits as its factorization.

130722122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895432.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 130722122 is about 11433.3775412168. The cubic root of 130722122 is about 507.5159508685.

Adding to 130722122 its reverse (221227031), we get a palindrome (351949153).

The spelling of 130722122 in words is "one hundred thirty million, seven hundred twenty-two thousand, one hundred twenty-two".