20011001112120 has 32 divisors (see below), whose sum is σ = 60033003336720. Its totient is φ = 5336266963200.

The previous prime is 20011001112079. The next prime is 20011001112139. The reversal of 20011001112120 is 2121110011002.

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 = 20011001112096 and 20011001112105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83379171181 + ... + 83379171420.

Almost surely, 2^{20011001112120} is an apocalyptic number.

20011001112120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011001112120 is an abundant number, since it is smaller than the sum of its proper divisors (40022002224600).

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

20011001112120 is a wasteful number, since it uses less digits than its factorization.

20011001112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166758342615 (or 166758342611 counting only the distinct ones).

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

Adding to 20011001112120 its reverse (2121110011002), we get a palindrome (22132111123122).

The spelling of 20011001112120 in words is "twenty trillion, eleven billion, one million, one hundred twelve thousand, one hundred twenty".