2220844671 has 6 divisors (see below), whose sum is σ = 3207886760. Its totient is φ = 1480563108.

The previous prime is 2220844667. The next prime is 2220844721. The reversal of 2220844671 is 1764480222.

2220844671 is a `hidden beast` number, since 2 + 2 + 208 + 446 + 7 + 1 = 666.

It is not a de Polignac number, because 2220844671 - 2² = 2220844667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220844271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123380251 + ... + 123380268.

Almost surely, 2^2220844671 is an apocalyptic number.

2220844671 is a deficient number, since it is larger than the sum of its proper divisors (987042089).

2220844671 is a wasteful number, since it uses less digits than its factorization.

2220844671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246760525 (or 246760522 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 2220844671 is about 47125.8386768872. The cubic root of 2220844671 is about 1304.6861781174.

The spelling of 2220844671 in words is "two billion, two hundred twenty million, eight hundred forty-four thousand, six hundred seventy-one".