20002112212012 has 48 divisors (see below), whose sum is σ = 40127314526208. Its totient is φ = 8545997678400.

The previous prime is 20002112212003. The next prime is 20002112212067. The reversal of 20002112212012 is 21021221120002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11074773 + ... + 12753619.

It is an arithmetic number, because the mean of its divisors is an integer number (835985719296).

Almost surely, 2^{20002112212012} is an apocalyptic number.

It is an amenable number.

20002112212012 is an abundant number, since it is smaller than the sum of its proper divisors (20125202314196).

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

20002112212012 is a wasteful number, since it uses less digits than its factorization.

20002112212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680166 (or 1680164 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20002112212012 its reverse (21021221120002), we get a palindrome (41023333332014).

The spelling of 20002112212012 in words is "twenty trillion, two billion, one hundred twelve million, two hundred twelve thousand, twelve".