2209128196 has 48 divisors (see below), whose sum is σ = 4409653248. Its totient is φ = 958557600.

The previous prime is 2209128193. The next prime is 2209128199. The reversal of 2209128196 is 6918219022.

It is an interprime number because it is at equal distance from previous prime (2209128193) and next prime (2209128199).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2209128193) 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, 575941 + ... + 579763.

It is an arithmetic number, because the mean of its divisors is an integer number (91867776).

Almost surely, 2^2209128196 is an apocalyptic number.

It is an amenable number.

2209128196 is a deficient number, since it is larger than the sum of its proper divisors (2200525052).

2209128196 is a wasteful number, since it uses less digits than its factorization.

2209128196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432 (or 4430 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 2209128196 is about 47001.3637674483. The cubic root of 2209128196 is about 1302.3877607340.

The spelling of 2209128196 in words is "two billion, two hundred nine million, one hundred twenty-eight thousand, one hundred ninety-six".