115521304224212 has 24 divisors (see below), whose sum is σ = 208685842552320. Its totient is φ = 55896816998880.

The previous prime is 115521304224199. The next prime is 115521304224301. The reversal of 115521304224212 is 212422403125511.

It is a congruent number.

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, 7044638 + ... + 16753194.

It is an arithmetic number, because the mean of its divisors is an integer number (8695243439680).

Almost surely, 2^{115521304224212} is an apocalyptic number.

It is an amenable number.

115521304224212 is a deficient number, since it is larger than the sum of its proper divisors (93164538328108).

115521304224212 is a wasteful number, since it uses less digits than its factorization.

115521304224212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9804551 (or 9804549 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 115521304224212 its reverse (212422403125511), we get a palindrome (327943707349723).

The spelling of 115521304224212 in words is "one hundred fifteen trillion, five hundred twenty-one billion, three hundred four million, two hundred twenty-four thousand, two hundred twelve".