20100112212011 has 24 divisors (see below), whose sum is σ = 23049724207104. Its totient is φ = 17459352768000.

The previous prime is 20100112212007. The next prime is 20100112212023. The reversal of 20100112212011 is 11021221100102.

It is not a de Polignac number, because 20100112212011 - 2² = 20100112212007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100112212001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15168470 + ... + 16440276.

It is an arithmetic number, because the mean of its divisors is an integer number (960405175296).

Almost surely, 2^{20100112212011} is an apocalyptic number.

20100112212011 is a deficient number, since it is larger than the sum of its proper divisors (2949611995093).

20100112212011 is a wasteful number, since it uses less digits than its factorization.

20100112212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277351 (or 1277338 counting only the distinct ones).

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

Adding to 20100112212011 its reverse (11021221100102), we get a palindrome (31121333312113).

The spelling of 20100112212011 in words is "twenty trillion, one hundred billion, one hundred twelve million, two hundred twelve thousand, eleven".