20001022012012 has 12 divisors (see below), whose sum is σ = 36130878473536. Its totient is φ = 9677913876720.

The previous prime is 20001022012009. The next prime is 20001022012067. The reversal of 20001022012012 is 21021022010002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20001022011983 and 20001022012001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80649282183 + ... + 80649282430.

Almost surely, 2^{20001022012012} is an apocalyptic number.

It is an amenable number.

20001022012012 is a deficient number, since it is larger than the sum of its proper divisors (16129856461524).

20001022012012 is a wasteful number, since it uses less digits than its factorization.

20001022012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161298564648 (or 161298564646 counting only the distinct ones).

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

Adding to 20001022012012 its reverse (21021022010002), we get a palindrome (41022044022014).

The spelling of 20001022012012 in words is "twenty trillion, one billion, twenty-two million, twelve thousand, twelve".