20121022020012 has 48 divisors (see below), whose sum is σ = 51014249395200. Its totient is φ = 6149038985280.

The previous prime is 20121022019999. The next prime is 20121022020041. The reversal of 20121022020012 is 21002022012102.

It is a junction number, because it is equal to n+sod(n) for n = 20121022019973 and 20121022020000.

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 15 ways as a sum of consecutive naturals, for example, 1423381587 + ... + 1423395722.

It is an arithmetic number, because the mean of its divisors is an integer number (1062796862400).

Almost surely, 2^{20121022020012} is an apocalyptic number.

It is an amenable number.

20121022020012 is an abundant number, since it is smaller than the sum of its proper divisors (30893227375188).

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

20121022020012 is a wasteful number, since it uses less digits than its factorization.

20121022020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846777366 (or 2846777364 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20121022020012 its reverse (21002022012102), we get a palindrome (41123044032114).

The spelling of 20121022020012 in words is "twenty trillion, one hundred twenty-one billion, twenty-two million, twenty thousand, twelve".