20002100201120 has 24 divisors (see below), whose sum is σ = 47254961725524. Its totient is φ = 8000840080384.

The previous prime is 20002100201107. The next prime is 20002100201129. The reversal of 20002100201120 is 2110200120002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19743910201744 + 258189999376 = 4443412^2 + 508124^2 .

It is not an unprimeable number, because it can be changed into a prime (20002100201129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62506562969 + ... + 62506563288.

Almost surely, 2^{20002100201120} is an apocalyptic number.

20002100201120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002100201120 is an abundant number, since it is smaller than the sum of its proper divisors (27252861524404).

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

20002100201120 is a wasteful number, since it uses less digits than its factorization.

20002100201120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125013126272 (or 125013126264 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20002100201120 its reverse (2110200120002), we get a palindrome (22112300321122).

The spelling of 20002100201120 in words is "twenty trillion, two billion, one hundred million, two hundred one thousand, one hundred twenty".