10001120002021 has 4 divisors (see below), whose sum is σ = 10056374808844. Its totient is φ = 9945865195200.

The previous prime is 10001120001953. The next prime is 10001120002039. The reversal of 10001120002021 is 12020002110001.

10001120002021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 316040730625 + 9685079271396 = 562175^2 + 3112086^2 .

It is a cyclic number.

It is not a de Polignac number, because 10001120002021 - 2⁷ = 10001120001893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10001120001989 and 10001120002007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001120002121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27627403140 + ... + 27627403501.

It is an arithmetic number, because the mean of its divisors is an integer number (2514093702211).

Almost surely, 2^{10001120002021} is an apocalyptic number.

It is an amenable number.

10001120002021 is a deficient number, since it is larger than the sum of its proper divisors (55254806823).

10001120002021 is an equidigital number, since it uses as much as digits as its factorization.

10001120002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55254806822.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10001120002021 its reverse (12020002110001), we get a palindrome (22021122112022).

The spelling of 10001120002021 in words is "ten trillion, one billion, one hundred twenty million, two thousand, twenty-one".