20001202212012 has 96 divisors (see below), whose sum is σ = 53614387814400. Its totient is φ = 5684936170560.

The previous prime is 20001202212011. The next prime is 20001202212071. The reversal of 20001202212012 is 21021220210002.

It is a junction number, because it is equal to n+sod(n) for n = 20001202211982 and 20001202212000.

It is not an unprimeable number, because it can be changed into a prime (20001202212011) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 11766739 + ... + 13358837.

It is an arithmetic number, because the mean of its divisors is an integer number (558483206400).

Almost surely, 2^{20001202212012} is an apocalyptic number.

It is an amenable number.

20001202212012 is an abundant number, since it is smaller than the sum of its proper divisors (33613185602388).

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

20001202212012 is a wasteful number, since it uses less digits than its factorization.

20001202212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592891 (or 1592889 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20001202212012 its reverse (21021220210002), we get a palindrome (41022422422014).

The spelling of 20001202212012 in words is "twenty trillion, one billion, two hundred two million, two hundred twelve thousand, twelve".