20011101201120 has 48 divisors (see below), whose sum is σ = 63034968785040. Its totient is φ = 5336293653504.

The previous prime is 20011101201109. The next prime is 20011101201121. The reversal of 20011101201120 is 2110210111002.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20011101201096 and 20011101201105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011101201121) 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 7 ways as a sum of consecutive naturals, for example, 20844896605 + ... + 20844897564.

It is an arithmetic number, because the mean of its divisors is an integer number (1313228516355).

Almost surely, 2^{20011101201120} is an apocalyptic number.

20011101201120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011101201120 is an abundant number, since it is smaller than the sum of its proper divisors (43023867583920).

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

20011101201120 is a wasteful number, since it uses less digits than its factorization.

20011101201120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41689794187 (or 41689794179 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20011101201120 its reverse (2110210111002), we get a palindrome (22121311312122).

The spelling of 20011101201120 in words is "twenty trillion, eleven billion, one hundred one million, two hundred one thousand, one hundred twenty".