20212021200112 has 160 divisors (see below), whose sum is σ = 48553105152384. Its totient is φ = 7952351232000.

The previous prime is 20212021200047. The next prime is 20212021200167. The reversal of 20212021200112 is 21100212021202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 452826948 + ... + 452871580.

Almost surely, 2^{20212021200112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20212021200112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24276552576192).

20212021200112 is an abundant number, since it is smaller than the sum of its proper divisors (28341083952272).

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

20212021200112 is a wasteful number, since it uses less digits than its factorization.

20212021200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50507 (or 50501 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20212021200112 its reverse (21100212021202), we get a palindrome (41312233221314).

The spelling of 20212021200112 in words is "twenty trillion, two hundred twelve billion, twenty-one million, two hundred thousand, one hundred twelve".