20001012200212 has 6 divisors (see below), whose sum is σ = 35001771350378. Its totient is φ = 10000506100104.

The previous prime is 20001012200167. The next prime is 20001012200249. The reversal of 20001012200212 is 21200221010002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19874798269456 + 126213930756 = 4458116^2 + 355266^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20001012200192 and 20001012200201.

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 as a sum of consecutive naturals, namely, 2500126525023 + ... + 2500126525030.

Almost surely, 2^{20001012200212} is an apocalyptic number.

It is an amenable number.

20001012200212 is a deficient number, since it is larger than the sum of its proper divisors (15000759150166).

20001012200212 is a wasteful number, since it uses less digits than its factorization.

20001012200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000253050057 (or 5000253050055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20001012200212 its reverse (21200221010002), we get a palindrome (41201233210214).

The spelling of 20001012200212 in words is "twenty trillion, one billion, twelve million, two hundred thousand, two hundred twelve".