20112311110212 has 36 divisors (see below), whose sum is σ = 50857285491376. Its totient is φ = 6701752177200.

The previous prime is 20112311110207. The next prime is 20112311110219. The reversal of 20112311110212 is 21201111321102.

It is a happy number.

20112311110212 is a `hidden beast` number, since 20 + 1 + 12 + 311 + 110 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20112311110219) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 97876198 + ... + 98081469.

Almost surely, 2^{20112311110212} is an apocalyptic number.

It is an amenable number.

20112311110212 is an abundant number, since it is smaller than the sum of its proper divisors (30744974381164).

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

20112311110212 is a wasteful number, since it uses less digits than its factorization.

20112311110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195960528 (or 195960523 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 20112311110212 its reverse (21201111321102), we get a palindrome (41313422431314).

The spelling of 20112311110212 in words is "twenty trillion, one hundred twelve billion, three hundred eleven million, one hundred ten thousand, two hundred twelve".