20112020111212 has 12 divisors (see below), whose sum is σ = 35196133129920. Its totient is φ = 10055982074096.

The previous prime is 20112020111167. The next prime is 20112020111279. The reversal of 20112020111212 is 21211102021102.

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 3 ways as a sum of consecutive naturals, for example, 5334343 + ... + 8287294.

It is an arithmetic number, because the mean of its divisors is an integer number (2933011094160).

Almost surely, 2^{20112020111212} is an apocalyptic number.

It is an amenable number.

20112020111212 is a deficient number, since it is larger than the sum of its proper divisors (15084113018708).

20112020111212 is a wasteful number, since it uses less digits than its factorization.

20112020111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13990760 (or 13990758 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20112020111212 its reverse (21211102021102), we get a palindrome (41323122132314).

The spelling of 20112020111212 in words is "twenty trillion, one hundred twelve billion, twenty million, one hundred eleven thousand, two hundred twelve".