122631751226 has 8 divisors (see below), whose sum is σ = 185843994420. Its totient is φ = 60683753088.

The previous prime is 122631751211. The next prime is 122631751237. The reversal of 122631751226 is 622157136221.

It can be written as a sum of positive squares in 2 ways, for example, as 110322958201 + 12308793025 = 332149^2 + 110945^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 122631751226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316061021 + ... + 316061408.

Almost surely, 2^122631751226 is an apocalyptic number.

122631751226 is a deficient number, since it is larger than the sum of its proper divisors (63212243194).

122631751226 is an equidigital number, since it uses as much as digits as its factorization.

122631751226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632122528.

The product of its digits is 60480, while the sum is 38.

Adding to 122631751226 its reverse (622157136221), we get a palindrome (744788887447).

The spelling of 122631751226 in words is "one hundred twenty-two billion, six hundred thirty-one million, seven hundred fifty-one thousand, two hundred twenty-six".