2221622275 has 12 divisors (see below), whose sum is σ = 2780560872. Its totient is φ = 1760685440.

The previous prime is 2221622261. The next prime is 2221622281. The reversal of 2221622275 is 5722261222.

It is not a de Polignac number, because 2221622275 - 2⁵ = 2221622243 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412582 + ... + 417931.

It is an arithmetic number, because the mean of its divisors is an integer number (231713406).

Almost surely, 2^2221622275 is an apocalyptic number.

2221622275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2221622275 is a deficient number, since it is larger than the sum of its proper divisors (558938597).

2221622275 is a wasteful number, since it uses less digits than its factorization.

2221622275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830630 (or 830625 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 2221622275 is about 47134.0882483156. The cubic root of 2221622275 is about 1304.8384341214.

Adding to 2221622275 its reverse (5722261222), we get a palindrome (7943883497).

The spelling of 2221622275 in words is "two billion, two hundred twenty-one million, six hundred twenty-two thousand, two hundred seventy-five".