201020012111120 has 40 divisors (see below), whose sum is σ = 467392450343616. Its totient is φ = 80404405328768.

The previous prime is 201020012111117. The next prime is 201020012111129. The reversal of 201020012111120 is 21111210020102.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 201020012111095 and 201020012111104.

It is not an unprimeable number, because it can be changed into a prime (201020012111129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54443822 + ... + 58018701.

Almost surely, 2^{201020012111120} is an apocalyptic number.

201020012111120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201020012111120 is an abundant number, since it is smaller than the sum of its proper divisors (266372438232496).

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

201020012111120 is a wasteful number, since it uses less digits than its factorization.

201020012111120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112484879 (or 112484873 counting only the distinct ones).

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

Adding to 201020012111120 its reverse (21111210020102), we get a palindrome (222131222131222).

The spelling of 201020012111120 in words is "two hundred one trillion, twenty billion, twelve million, one hundred eleven thousand, one hundred twenty".