115521005072212 has 24 divisors (see below), whose sum is σ = 216652789777536. Its totient is φ = 53755955355168.

The previous prime is 115521005072153. The next prime is 115521005072233. The reversal of 115521005072212 is 212270500125511.

It is a super-2 number, since 2×115521005072212² (a number of 29 digits) contains 22 as substring.

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, 16968416848 + ... + 16968423655.

It is an arithmetic number, because the mean of its divisors is an integer number (9027199574064).

Almost surely, 2^{115521005072212} is an apocalyptic number.

It is an amenable number.

115521005072212 is a deficient number, since it is larger than the sum of its proper divisors (101131784705324).

115521005072212 is a wasteful number, since it uses less digits than its factorization.

115521005072212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33936840567 (or 33936840565 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 34.

Adding to 115521005072212 its reverse (212270500125511), we get a palindrome (327791505197723).

The spelling of 115521005072212 in words is "one hundred fifteen trillion, five hundred twenty-one billion, five million, seventy-two thousand, two hundred twelve".