115551202220 has 12 divisors (see below), whose sum is σ = 242657524704. Its totient is φ = 46220480880.

The previous prime is 115551202219. The next prime is 115551202259. The reversal of 115551202220 is 22202155511.

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 115551202220.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2888780036 + ... + 2888780075.

It is an arithmetic number, because the mean of its divisors is an integer number (20221460392).

Almost surely, 2^115551202220 is an apocalyptic number.

115551202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115551202220 is an abundant number, since it is smaller than the sum of its proper divisors (127106322484).

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

115551202220 is a wasteful number, since it uses less digits than its factorization.

115551202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5777560120 (or 5777560118 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 115551202220 its reverse (22202155511), we get a palindrome (137753357731).

The spelling of 115551202220 in words is "one hundred fifteen billion, five hundred fifty-one million, two hundred two thousand, two hundred twenty".