23221036 has 6 divisors (see below), whose sum is σ = 40636820. Its totient is φ = 11610516.

The previous prime is 23221019. The next prime is 23221063. The reversal of 23221036 is 63012232.

It is a super-3 number, since 3×23221036³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2902626 + ... + 2902633.

Almost surely, 2^23221036 is an apocalyptic number.

It is an amenable number.

23221036 is a deficient number, since it is larger than the sum of its proper divisors (17415784).

23221036 is a wasteful number, since it uses less digits than its factorization.

23221036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5805263 (or 5805261 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 23221036 is about 4818.8210176349. The cubic root of 23221036 is about 285.2948052374.

Adding to 23221036 its reverse (63012232), we get a palindrome (86233268).

The spelling of 23221036 in words is "twenty-three million, two hundred twenty-one thousand, thirty-six".