20001012210012 has 24 divisors (see below), whose sum is σ = 46670938787200. Its totient is φ = 6666731170416.

The previous prime is 20001012209963. The next prime is 20001012210031. The reversal of 20001012210012 is 21001221010002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 20001012210012.

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, 33806962 + ... + 34393497.

Almost surely, 2^{20001012210012} is an apocalyptic number.

It is an amenable number.

20001012210012 is an abundant number, since it is smaller than the sum of its proper divisors (26669926577188).

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

20001012210012 is a wasteful number, since it uses less digits than its factorization.

20001012210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68224905 (or 68224903 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20001012210012 its reverse (21001221010002), we get a palindrome (41002233220014).

The spelling of 20001012210012 in words is "twenty trillion, one billion, twelve million, two hundred ten thousand, twelve".