20011201212012 has 24 divisors (see below), whose sum is σ = 46693018066800. Its totient is φ = 6670369655616.

The previous prime is 20011201211957. The next prime is 20011201212029. The reversal of 20011201212012 is 21021210211002.

It is a junction number, because it is equal to n+sod(n) for n = 20011201211982 and 20011201212000.

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, 1050687 + ... + 6412982.

It is an arithmetic number, because the mean of its divisors is an integer number (1945542419450).

Almost surely, 2^{20011201212012} is an apocalyptic number.

It is an amenable number.

20011201212012 is an abundant number, since it is smaller than the sum of its proper divisors (26681816854788).

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

20011201212012 is a wasteful number, since it uses less digits than its factorization.

20011201212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7687105 (or 7687103 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20011201212012 its reverse (21021210211002), we get a palindrome (41032411423014).

The spelling of 20011201212012 in words is "twenty trillion, eleven billion, two hundred one million, two hundred twelve thousand, twelve".