12722045138 has 16 divisors (see below), whose sum is σ = 20821380480. Its totient is φ = 5781778800.

The previous prime is 12722045113. The next prime is 12722045159. The reversal of 12722045138 is 83154022721.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12722045098 and 12722045107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95303 + ... + 185813.

It is an arithmetic number, because the mean of its divisors is an integer number (1301336280).

Almost surely, 2^12722045138 is an apocalyptic number.

12722045138 is a deficient number, since it is larger than the sum of its proper divisors (8099335342).

12722045138 is a wasteful number, since it uses less digits than its factorization.

12722045138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96913.

The product of its (nonzero) digits is 26880, while the sum is 35.

Adding to 12722045138 its reverse (83154022721), we get a palindrome (95876067859).

The spelling of 12722045138 in words is "twelve billion, seven hundred twenty-two million, forty-five thousand, one hundred thirty-eight".