2221230776 has 32 divisors (see below), whose sum is σ = 4218337200. Its totient is φ = 1096416000.

The previous prime is 2221230769. The next prime is 2221230799. The reversal of 2221230776 is 6770321222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242276 + ... + 251276.

Almost surely, 2^2221230776 is an apocalyptic number.

It is an amenable number.

2221230776 is a deficient number, since it is larger than the sum of its proper divisors (1997106424).

2221230776 is a wasteful number, since it uses less digits than its factorization.

2221230776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9399 (or 9395 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 2221230776 is about 47129.9350307212. The cubic root of 2221230776 is about 1304.7617824844.

Adding to 2221230776 its reverse (6770321222), we get a palindrome (8991551998).

The spelling of 2221230776 in words is "two billion, two hundred twenty-one million, two hundred thirty thousand, seven hundred seventy-six".