2220128275 has 12 divisors (see below), whose sum is σ = 2774639872. Its totient is φ = 1762115040.

The previous prime is 2220128249. The next prime is 2220128293. The reversal of 2220128275 is 5728210222.

It is a de Polignac number, because none of the positive numbers 2^k-2220128275 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346452 + ... + 352801.

Almost surely, 2^2220128275 is an apocalyptic number.

2220128275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2220128275 is a deficient number, since it is larger than the sum of its proper divisors (554511597).

2220128275 is a wasteful number, since it uses less digits than its factorization.

2220128275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699390 (or 699385 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 2220128275 is about 47118.2371805228. The cubic root of 2220128275 is about 1304.5458752722.

Adding to 2220128275 its reverse (5728210222), we get a palindrome (7948338497).

The spelling of 2220128275 in words is "two billion, two hundred twenty million, one hundred twenty-eight thousand, two hundred seventy-five".