115550000211 has 4 divisors (see below), whose sum is σ = 154066666952. Its totient is φ = 77033333472.

The previous prime is 115550000197. The next prime is 115550000261. The reversal of 115550000211 is 112000055511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 115550000211 - 2⁶ = 115550000147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115550000261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19258333366 + ... + 19258333371.

It is an arithmetic number, because the mean of its divisors is an integer number (38516666738).

Almost surely, 2^115550000211 is an apocalyptic number.

115550000211 is a deficient number, since it is larger than the sum of its proper divisors (38516666741).

115550000211 is an equidigital number, since it uses as much as digits as its factorization.

115550000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38516666740.

The product of its (nonzero) digits is 250, while the sum is 21.

Adding to 115550000211 its reverse (112000055511), we get a palindrome (227550055722).

The spelling of 115550000211 in words is "one hundred fifteen billion, five hundred fifty million, two hundred eleven", and thus it is an aban number.