20112021221120 has 288 divisors, whose sum is σ = 49729040471040. Its totient is φ = 7790206648320.

The previous prime is 20112021221119. The next prime is 20112021221143. The reversal of 20112021221120 is 2112212021102.

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, 1461728801 + ... + 1461742559.

Almost surely, 2^{20112021221120} is an apocalyptic number.

20112021221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112021221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24864520235520).

20112021221120 is an abundant number, since it is smaller than the sum of its proper divisors (29617019249920).

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

20112021221120 is a wasteful number, since it uses less digits than its factorization.

20112021221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14131 (or 14117 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20112021221120 its reverse (2112212021102), we get a palindrome (22224233242222).

The spelling of 20112021221120 in words is "twenty trillion, one hundred twelve billion, twenty-one million, two hundred twenty-one thousand, one hundred twenty".