115222312452520 has 384 divisors, whose sum is σ = 328756418807040. Its totient is φ = 35565623009280.

The previous prime is 115222312452491. The next prime is 115222312452563. The reversal of 115222312452520 is 25254213222511.

It is a super-2 number, since 2×115222312452520² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115222312452520.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8231922162 + ... + 8231936158.

It is an arithmetic number, because the mean of its divisors is an integer number (856136507310).

Almost surely, 2^{115222312452520} is an apocalyptic number.

115222312452520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115222312452520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164378209403520).

115222312452520 is an abundant number, since it is smaller than the sum of its proper divisors (213534106354520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115222312452520 is a wasteful number, since it uses less digits than its factorization.

115222312452520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18325 (or 18308 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 115222312452520 in words is "one hundred fifteen trillion, two hundred twenty-two billion, three hundred twelve million, four hundred fifty-two thousand, five hundred twenty".