115051215444220 has 48 divisors (see below), whose sum is σ = 272660560754400. Its totient is φ = 40394157144320.

The previous prime is 115051215444149. The next prime is 115051215444233. The reversal of 115051215444220 is 22444512150511.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 115051215444220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9016546555 + ... + 9016559314.

It is an arithmetic number, because the mean of its divisors is an integer number (5680428349050).

Almost surely, 2^{115051215444220} is an apocalyptic number.

115051215444220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115051215444220 is an abundant number, since it is smaller than the sum of its proper divisors (157609345310180).

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

115051215444220 is a wasteful number, since it uses less digits than its factorization.

115051215444220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18033105918 (or 18033105916 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 37.

Adding to 115051215444220 its reverse (22444512150511), we get a palindrome (137495727594731).

The spelling of 115051215444220 in words is "one hundred fifteen trillion, fifty-one billion, two hundred fifteen million, four hundred forty-four thousand, two hundred twenty".