128211050 has 48 divisors (see below), whose sum is σ = 273866400. Its totient is φ = 44164800.

The previous prime is 128211023. The next prime is 128211053. The reversal of 128211050 is 50112821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (128211053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4316 + ... + 16584.

It is an arithmetic number, because the mean of its divisors is an integer number (5705550).

Almost surely, 2^128211050 is an apocalyptic number.

128211050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128211050 is an abundant number, since it is smaller than the sum of its proper divisors (145655350).

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

128211050 is a wasteful number, since it uses less digits than its factorization.

128211050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12311 (or 12306 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 128211050 is about 11323.0318378074. The cubic root of 128211050 is about 504.2452536316.

Adding to 128211050 its reverse (50112821), we get a palindrome (178323871).

The spelling of 128211050 in words is "one hundred twenty-eight million, two hundred eleven thousand, fifty".