115552212100 has 54 divisors (see below), whose sum is σ = 271520388510. Its totient is φ = 42665425920.

The previous prime is 115552212079. The next prime is 115552212137. The reversal of 115552212100 is 1212255511.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 76991820676 + 38560391424 = 277474^2 + 196368^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3401805 + ... + 3435604.

Almost surely, 2^115552212100 is an apocalyptic number.

115552212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115552212100 is an abundant number, since it is smaller than the sum of its proper divisors (155968176410).

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

115552212100 is a wasteful number, since it uses less digits than its factorization.

115552212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6837449 (or 6837429 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 115552212100 its reverse (1212255511), we get a palindrome (116764467611).

The spelling of 115552212100 in words is "one hundred fifteen billion, five hundred fifty-two million, two hundred twelve thousand, one hundred".