2221277205 has 64 divisors (see below), whose sum is σ = 4345367040. Its totient is φ = 945782784.

The previous prime is 2221277183. The next prime is 2221277237. The reversal of 2221277205 is 5027721222.

It is not a de Polignac number, because 2221277205 - 2⁵ = 2221277173 is a prime.

It is a super-2 number, since 2×2221277205² = 9868144842905224050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 166731 + ... + 179559.

It is an arithmetic number, because the mean of its divisors is an integer number (67896360).

Almost surely, 2^2221277205 is an apocalyptic number.

It is an amenable number.

2221277205 is a deficient number, since it is larger than the sum of its proper divisors (2124089835).

2221277205 is a wasteful number, since it uses less digits than its factorization.

2221277205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12958.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 2221277205 is about 47130.4275919496. The cubic root of 2221277205 is about 1304.7708732947.

Adding to 2221277205 its reverse (5027721222), we get a palindrome (7248998427).

The spelling of 2221277205 in words is "two billion, two hundred twenty-one million, two hundred seventy-seven thousand, two hundred five".