20322033012 has 72 divisors (see below), whose sum is σ = 53121519360. Its totient is φ = 6543768960.

The previous prime is 20322032971. The next prime is 20322033037. The reversal of 20322033012 is 21033022302.

It is a happy number.

20322033012 is a `hidden beast` number, since 2 + 0 + 322 + 0 + 330 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 619003 + ... + 651005.

It is an arithmetic number, because the mean of its divisors is an integer number (737798880).

Almost surely, 2^20322033012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20322033012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26560759680).

20322033012 is an abundant number, since it is smaller than the sum of its proper divisors (32799486348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20322033012 is a wasteful number, since it uses less digits than its factorization.

20322033012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32613 (or 32608 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20322033012 its reverse (21033022302), we get a palindrome (41355055314).

The spelling of 20322033012 in words is "twenty billion, three hundred twenty-two million, thirty-three thousand, twelve".