20201001102120 has 128 divisors (see below), whose sum is σ = 62243207216640. Its totient is φ = 5241148416000.

The previous prime is 20201001102077. The next prime is 20201001102263. The reversal of 20201001102120 is 2120110010202.

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 = 20201001102096 and 20201001102105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152105745 + ... + 152238495.

It is an arithmetic number, because the mean of its divisors is an integer number (486275056380).

Almost surely, 2^{20201001102120} is an apocalyptic number.

20201001102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201001102120 is an abundant number, since it is smaller than the sum of its proper divisors (42042206114520).

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

20201001102120 is a wasteful number, since it uses less digits than its factorization.

20201001102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167075 (or 167071 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20201001102120 its reverse (2120110010202), we get a palindrome (22321111112322).

The spelling of 20201001102120 in words is "twenty trillion, two hundred one billion, one million, one hundred two thousand, one hundred twenty".