20110111100012 has 24 divisors (see below), whose sum is σ = 35409061299696. Its totient is φ = 9993238049088.

The previous prime is 20110111099951. The next prime is 20110111100077. The reversal of 20110111100012 is 21000111101102.

It is a junction number, because it is equal to n+sod(n) for n = 20110111099966 and 20110111100002.

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, 67380698 + ... + 67678494.

It is an arithmetic number, because the mean of its divisors is an integer number (1475377554154).

Almost surely, 2^{20110111100012} is an apocalyptic number.

It is an amenable number.

20110111100012 is a deficient number, since it is larger than the sum of its proper divisors (15298950199684).

20110111100012 is a wasteful number, since it uses less digits than its factorization.

20110111100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401537 (or 401535 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 20110111100012 its reverse (21000111101102), we get a palindrome (41110222201114).

The spelling of 20110111100012 in words is "twenty trillion, one hundred ten billion, one hundred eleven million, one hundred thousand, twelve".