2100021101201 has 16 divisors (see below), whose sum is σ = 2216309135040. Its totient is φ = 1984315838400.

The previous prime is 2100021101173. The next prime is 2100021101261. The reversal of 2100021101201 is 1021011200012.

It is a cyclic number.

It is not a de Polignac number, because 2100021101201 - 2³⁸ = 1825143194257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100021101261) 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 15 ways as a sum of consecutive naturals, for example, 11268686 + ... + 11453528.

It is an arithmetic number, because the mean of its divisors is an integer number (138519320940).

Almost surely, 2^{2100021101201} is an apocalyptic number.

It is an amenable number.

2100021101201 is a deficient number, since it is larger than the sum of its proper divisors (116288033839).

2100021101201 is a wasteful number, since it uses less digits than its factorization.

2100021101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186416.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2100021101201 its reverse (1021011200012), we get a palindrome (3121032301213).

The spelling of 2100021101201 in words is "two trillion, one hundred billion, twenty-one million, one hundred one thousand, two hundred one".