21010200100201 has 16 divisors (see below), whose sum is σ = 22900234904064. Its totient is φ = 19159999225344.

The previous prime is 21010200100147. The next prime is 21010200100213. The reversal of 21010200100201 is 10200100201012.

It is a cyclic number.

It is not a de Polignac number, because 21010200100201 - 2²⁷ = 21010065882473 is a prime.

It is a super-2 number, since 2×21010200100201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21010200101201) 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, 14087161 + ... + 15507046.

It is an arithmetic number, because the mean of its divisors is an integer number (1431264681504).

Almost surely, 2^{21010200100201} is an apocalyptic number.

It is an amenable number.

21010200100201 is a deficient number, since it is larger than the sum of its proper divisors (1890034803863).

21010200100201 is a wasteful number, since it uses less digits than its factorization.

21010200100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29594880.

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

Adding to 21010200100201 its reverse (10200100201012), we get a palindrome (31210300301213).

The spelling of 21010200100201 in words is "twenty-one trillion, ten billion, two hundred million, one hundred thousand, two hundred one".