20111101120012 has 24 divisors (see below), whose sum is σ = 42588214137504. Its totient is φ = 8112040787712.

The previous prime is 20111101120001. The next prime is 20111101120027. The reversal of 20111101120012 is 21002110111102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20111101119974 and 20111101120001.

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, 21125105743 + ... + 21125106694.

It is an arithmetic number, because the mean of its divisors is an integer number (1774508922396).

Almost surely, 2^{20111101120012} is an apocalyptic number.

It is an amenable number.

20111101120012 is an abundant number, since it is smaller than the sum of its proper divisors (22477113017492).

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

20111101120012 is a wasteful number, since it uses less digits than its factorization.

20111101120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42250212465 (or 42250212463 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20111101120012 its reverse (21002110111102), we get a palindrome (41113211231114).

The spelling of 20111101120012 in words is "twenty trillion, one hundred eleven billion, one hundred one million, one hundred twenty thousand, twelve".