2221960871 has 16 divisors (see below), whose sum is σ = 2522701440. Its totient is φ = 1940099040.

The previous prime is 2221960849. The next prime is 2221960903. The reversal of 2221960871 is 1780691222.

It is a cyclic number.

It is not a de Polignac number, because 2221960871 - 2³⁰ = 1148219047 is a prime.

It is a super-2 number, since 2×2221960871² = 9874220224510157282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221960841) 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, 162116 + ... + 175286.

It is an arithmetic number, because the mean of its divisors is an integer number (157668840).

Almost surely, 2^2221960871 is an apocalyptic number.

2221960871 is a deficient number, since it is larger than the sum of its proper divisors (300740569).

2221960871 is a wasteful number, since it uses less digits than its factorization.

2221960871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13886.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 2221960871 is about 47137.6799492720. The cubic root of 2221960871 is about 1304.9047206118.

The spelling of 2221960871 in words is "two billion, two hundred twenty-one million, nine hundred sixty thousand, eight hundred seventy-one".