20201201112120 has 128 divisors (see below), whose sum is σ = 70295011315200. Its totient is φ = 4548500706816.

The previous prime is 20201201112101. The next prime is 20201201112137. The reversal of 20201201112120 is 2121110210202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20201201112120.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 179414235 + ... + 179526794.

It is an arithmetic number, because the mean of its divisors is an integer number (549179775900).

Almost surely, 2^{20201201112120} is an apocalyptic number.

20201201112120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201201112120 is an abundant number, since it is smaller than the sum of its proper divisors (50093810203080).

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

20201201112120 is a wasteful number, since it uses less digits than its factorization.

20201201112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358941117 (or 358941113 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20201201112120 its reverse (2121110210202), we get a palindrome (22322311322322).

The spelling of 20201201112120 in words is "twenty trillion, two hundred one billion, two hundred one million, one hundred twelve thousand, one hundred twenty".