201112101201020 has 48 divisors (see below), whose sum is σ = 454509470032128. Its totient is φ = 74471597736960.

The previous prime is 201112101201013. The next prime is 201112101201073. The reversal of 201112101201020 is 20102101211102.

It is a junction number, because it is equal to n+sod(n) for n = 201112101200986 and 201112101201004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4848390572 + ... + 4848432051.

It is an arithmetic number, because the mean of its divisors is an integer number (9468947292336).

Almost surely, 2^{201112101201020} is an apocalyptic number.

201112101201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201112101201020 is an abundant number, since it is smaller than the sum of its proper divisors (253397368831108).

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

201112101201020 is a wasteful number, since it uses less digits than its factorization.

201112101201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9696822710 (or 9696822708 counting only the distinct ones).

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

Adding to 201112101201020 its reverse (20102101211102), we get a palindrome (221214202412122).

The spelling of 201112101201020 in words is "two hundred one trillion, one hundred twelve billion, one hundred one million, two hundred one thousand, twenty".