115122220155135 has 24 divisors (see below), whose sum is σ = 199545773721840. Its totient is φ = 61398335225472.

The previous prime is 115122220155119. The next prime is 115122220155139. The reversal of 115122220155135 is 531551022221511.

It is a happy number.

115122220155135 is a `hidden beast` number, since 1 + 1 + 5 + 122 + 2 + 2 + 0 + 15 + 513 + 5 = 666.

It is not a de Polignac number, because 115122220155135 - 2⁴ = 115122220155119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115122220155135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115122220155139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12286747 + ... + 19524563.

It is an arithmetic number, because the mean of its divisors is an integer number (8314407238410).

Almost surely, 2^{115122220155135} is an apocalyptic number.

115122220155135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115122220155135 is a deficient number, since it is larger than the sum of its proper divisors (84423553566705).

115122220155135 is a wasteful number, since it uses less digits than its factorization.

115122220155135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7591287 (or 7591284 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

Adding to 115122220155135 its reverse (531551022221511), we get a palindrome (646673242376646).

The spelling of 115122220155135 in words is "one hundred fifteen trillion, one hundred twenty-two billion, two hundred twenty million, one hundred fifty-five thousand, one hundred thirty-five".