20110112211012 has 48 divisors (see below), whose sum is σ = 48068548886400. Its totient is φ = 6539809155840.

The previous prime is 20110112211011. The next prime is 20110112211037. The reversal of 20110112211012 is 21011221101102.

It is a happy number.

It is a super-2 number, since 2×20110112211012² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20110112210982 and 20110112211000.

It is not an unprimeable number, because it can be changed into a prime (20110112211011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95992314 + ... + 96201582.

It is an arithmetic number, because the mean of its divisors is an integer number (1001428101800).

Almost surely, 2^{20110112211012} is an apocalyptic number.

It is an amenable number.

20110112211012 is an abundant number, since it is smaller than the sum of its proper divisors (27958436675388).

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

20110112211012 is a wasteful number, since it uses less digits than its factorization.

20110112211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404636 (or 404634 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20110112211012 its reverse (21011221101102), we get a palindrome (41121333312114).

The spelling of 20110112211012 in words is "twenty trillion, one hundred ten billion, one hundred twelve million, two hundred eleven thousand, twelve".