115221122512 has 40 divisors (see below), whose sum is σ = 224218363392. Its totient is φ = 57358540800.

The previous prime is 115221122503. The next prime is 115221122519. The reversal of 115221122512 is 215221122511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115221122519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10401937 + ... + 10413007.

Almost surely, 2^115221122512 is an apocalyptic number.

It is an amenable number.

115221122512 is a deficient number, since it is larger than the sum of its proper divisors (108997240880).

115221122512 is a wasteful number, since it uses less digits than its factorization.

115221122512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13867 (or 13861 counting only the distinct ones).

The product of its digits is 800, while the sum is 25.

Subtracting 115221122512 from its reverse (215221122511), we obtain a palindrome (99999999999).

The spelling of 115221122512 in words is "one hundred fifteen billion, two hundred twenty-one million, one hundred twenty-two thousand, five hundred twelve".