20322232012 has 12 divisors (see below), whose sum is σ = 35819762440. Its totient is φ = 10088014176.

The previous prime is 20322231971. The next prime is 20322232019. The reversal of 20322232012 is 21023222302.

It is a super-2 number, since 2×20322232012² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20322232019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18274833 + ... + 18275944.

Almost surely, 2^20322232012 is an apocalyptic number.

It is an amenable number.

20322232012 is a deficient number, since it is larger than the sum of its proper divisors (15497530428).

20322232012 is a wasteful number, since it uses less digits than its factorization.

20322232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36550920 (or 36550918 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20322232012 its reverse (21023222302), we get a palindrome (41345454314).

The spelling of 20322232012 in words is "twenty billion, three hundred twenty-two million, two hundred thirty-two thousand, twelve".