2221263536 has 20 divisors (see below), whose sum is σ = 4304751264. Its totient is φ = 1110360000.

The previous prime is 2221263523. The next prime is 2221263557. The reversal of 2221263536 is 6353621222.

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 3 ways as a sum of consecutive naturals, for example, 61406 + ... + 90626.

Almost surely, 2^2221263536 is an apocalyptic number.

It is an amenable number.

2221263536 is a deficient number, since it is larger than the sum of its proper divisors (2083487728).

2221263536 is a wasteful number, since it uses less digits than its factorization.

2221263536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33980 (or 33974 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 2221263536 is about 47130.2825792505. The cubic root of 2221263536 is about 1304.7681969141.

Adding to 2221263536 its reverse (6353621222), we get a palindrome (8574884758).

The spelling of 2221263536 in words is "two billion, two hundred twenty-one million, two hundred sixty-three thousand, five hundred thirty-six".