20012333321982 has 16 divisors (see below), whose sum is σ = 40029035782032. Its totient is φ = 6670049584320.

The previous prime is 20012333321921. The next prime is 20012333321993. The reversal of 20012333321982 is 28912333321002.

It is a super-2 number, since 2×20012333321982² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20012333321982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181987873 + ... + 182097804.

It is an arithmetic number, because the mean of its divisors is an integer number (2501814736377).

Almost surely, 2^{20012333321982} is an apocalyptic number.

20012333321982 is an abundant number, since it is smaller than the sum of its proper divisors (20016702460050).

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

20012333321982 is a wasteful number, since it uses less digits than its factorization.

20012333321982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364094843.

The product of its (nonzero) digits is 93312, while the sum is 39.

Adding to 20012333321982 its reverse (28912333321002), we get a palindrome (48924666642984).

The spelling of 20012333321982 in words is "twenty trillion, twelve billion, three hundred thirty-three million, three hundred twenty-one thousand, nine hundred eighty-two".