20320222232 has 16 divisors (see below), whose sum is σ = 38108023800. Its totient is φ = 10158082560.

The previous prime is 20320222199. The next prime is 20320222249. The reversal of 20320222232 is 23222202302.

It is a super-2 number, since 2×20320222232² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 210569 + ... + 291512.

Almost surely, 2^20320222232 is an apocalyptic number.

It is an amenable number.

20320222232 is a deficient number, since it is larger than the sum of its proper divisors (17787801568).

20320222232 is a wasteful number, since it uses less digits than its factorization.

20320222232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507146 (or 507142 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20320222232 its reverse (23222202302), we get a palindrome (43542424534).

The spelling of 20320222232 in words is "twenty billion, three hundred twenty million, two hundred twenty-two thousand, two hundred thirty-two".