113212221550515 has 24 divisors (see below), whose sum is σ = 196240437570528. Its totient is φ = 60378029888640.

The previous prime is 113212221550513. The next prime is 113212221550537. The reversal of 113212221550515 is 515055122212311.

It is a happy number.

113212221550515 is a `hidden beast` number, since 1 + 1 + 3 + 2 + 122 + 2 + 15 + 5 + 0 + 515 = 666.

It is not a de Polignac number, because 113212221550515 - 2¹ = 113212221550513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113212221550515.

It is not an unprimeable number, because it can be changed into a prime (113212221550513) 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, 36441279 + ... + 39425768.

It is an arithmetic number, because the mean of its divisors is an integer number (8176684898772).

Almost surely, 2^{113212221550515} is an apocalyptic number.

113212221550515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

113212221550515 is a deficient number, since it is larger than the sum of its proper divisors (83028216020013).

113212221550515 is a wasteful number, since it uses less digits than its factorization.

113212221550515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75900219 (or 75900216 counting only the distinct ones).

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

Adding to 113212221550515 its reverse (515055122212311), we get a palindrome (628267343762826).

The spelling of 113212221550515 in words is "one hundred thirteen trillion, two hundred twelve billion, two hundred twenty-one million, five hundred fifty thousand, five hundred fifteen".