20201201101120 has 112 divisors (see below), whose sum is σ = 52152108598800. Its totient is φ = 7408845029376.

The previous prime is 20201201101079. The next prime is 20201201101127. The reversal of 20201201101120 is 2110110210202.

It can be written as a sum of positive squares in 8 ways, for example, as 8700800882944 + 11500400218176 = 2949712^2 + 3391224^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 20201201101120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201201101127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15675657 + ... + 16915336.

It is an arithmetic number, because the mean of its divisors is an integer number (465643826775).

Almost surely, 2^{20201201101120} is an apocalyptic number.

20201201101120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201201101120 is an abundant number, since it is smaller than the sum of its proper divisors (31950907497680).

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

20201201101120 is a wasteful number, since it uses less digits than its factorization.

20201201101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32591172 (or 32591162 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20201201101120 its reverse (2110110210202), we get a palindrome (22311311311322).

The spelling of 20201201101120 in words is "twenty trillion, two hundred one billion, two hundred one million, one hundred one thousand, one hundred twenty".