2221606364 has 12 divisors (see below), whose sum is σ = 4021873800. Its totient is φ = 1072499568.

The previous prime is 2221606313. The next prime is 2221606391. The reversal of 2221606364 is 4636061222.

It is a self number, because there is not a number n which added to its sum of digits gives 2221606364.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9575774 + ... + 9576005.

It is an arithmetic number, because the mean of its divisors is an integer number (335156150).

Almost surely, 2^2221606364 is an apocalyptic number.

It is an amenable number.

2221606364 is a deficient number, since it is larger than the sum of its proper divisors (1800267436).

2221606364 is a wasteful number, since it uses less digits than its factorization.

2221606364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19151812 (or 19151810 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 2221606364 is about 47133.9194635880. The cubic root of 2221606364 is about 1304.8353190803.

Adding to 2221606364 its reverse (4636061222), we get a palindrome (6857667586).

The spelling of 2221606364 in words is "two billion, two hundred twenty-one million, six hundred six thousand, three hundred sixty-four".