20001201122012 has 24 divisors (see below), whose sum is σ = 38231194052352. Its totient is φ = 9080244860400.

The previous prime is 20001201121961. The next prime is 20001201122029. The reversal of 20001201122012 is 21022110210002.

It is a super-3 number, since 3×20001201122012³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280218788 + ... + 280290155.

It is an arithmetic number, because the mean of its divisors is an integer number (1592966418848).

Almost surely, 2^{20001201122012} is an apocalyptic number.

20001201122012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20001201122012 is a deficient number, since it is larger than the sum of its proper divisors (18229992930340).

20001201122012 is a wasteful number, since it uses less digits than its factorization.

20001201122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560509769 (or 560509767 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20001201122012 its reverse (21022110210002), we get a palindrome (41023311332014).

The spelling of 20001201122012 in words is "twenty trillion, one billion, two hundred one million, one hundred twenty-two thousand, twelve".