20211120111200 has 72 divisors (see below), whose sum is σ = 49426808591160. Its totient is φ = 8070289459200.

The previous prime is 20211120111187. The next prime is 20211120111227. The reversal of 20211120111200 is 211102111202.

It is a super-2 number, since 2×20211120111200² (a number of 27 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 21665705 + ... + 22579304.

It is an arithmetic number, because the mean of its divisors is an integer number (686483452655).

Almost surely, 2^{20211120111200} is an apocalyptic number.

20211120111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211120111200 is an abundant number, since it is smaller than the sum of its proper divisors (29215688479960).

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

20211120111200 is a wasteful number, since it uses less digits than its factorization.

20211120111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44245600 (or 44245587 counting only the distinct ones).

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

Adding to 20211120111200 its reverse (211102111202), we get a palindrome (20422222222402).

The spelling of 20211120111200 in words is "twenty trillion, two hundred eleven billion, one hundred twenty million, one hundred eleven thousand, two hundred".