20110111022012 has 96 divisors (see below), whose sum is σ = 40245132662784. Its totient is φ = 8710893555200.

The previous prime is 20110111021969. The next prime is 20110111022101. The reversal of 20110111022012 is 21022011101102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42412598 + ... + 42884130.

It is an arithmetic number, because the mean of its divisors is an integer number (419220131904).

Almost surely, 2^{20110111022012} is an apocalyptic number.

20110111022012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20110111022012 is an abundant number, since it is smaller than the sum of its proper divisors (20135021640772).

20110111022012 is a wasteful number, since it uses less digits than its factorization.

20110111022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472139 (or 472137 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20110111022012 its reverse (21022011101102), we get a palindrome (41132122123114).

The spelling of 20110111022012 in words is "twenty trillion, one hundred ten billion, one hundred eleven million, twenty-two thousand, twelve".