115561422210 has 32 divisors (see below), whose sum is σ = 298681830720. Its totient is φ = 28445888448.

The previous prime is 115561422187. The next prime is 115561422217. The reversal of 115561422210 is 12224165511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (115561422217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148155280 + ... + 148156059.

It is an arithmetic number, because the mean of its divisors is an integer number (9333807210).

Almost surely, 2^115561422210 is an apocalyptic number.

115561422210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115561422210 is an abundant number, since it is smaller than the sum of its proper divisors (183120408510).

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

115561422210 is a wasteful number, since it uses less digits than its factorization.

115561422210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296311362.

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 115561422210 its reverse (12224165511), we get a palindrome (127785587721).

The spelling of 115561422210 in words is "one hundred fifteen billion, five hundred sixty-one million, four hundred twenty-two thousand, two hundred ten".