21010100002201 has 16 divisors (see below), whose sum is σ = 21233117956608. Its totient is φ = 20787380640000.

The previous prime is 21010100002141. The next prime is 21010100002219. The reversal of 21010100002201 is 10220000101012.

It is a cyclic number.

It is not a de Polignac number, because 21010100002201 - 2¹⁵ = 21010099969433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21010100002231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1900157265 + ... + 1900168321.

It is an arithmetic number, because the mean of its divisors is an integer number (1327069872288).

Almost surely, 2^{21010100002201} is an apocalyptic number.

It is an amenable number.

21010100002201 is a deficient number, since it is larger than the sum of its proper divisors (223017954407).

21010100002201 is a wasteful number, since it uses less digits than its factorization.

21010100002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22752.

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

Adding to 21010100002201 its reverse (10220000101012), we get a palindrome (31230100103213).

The spelling of 21010100002201 in words is "twenty-one trillion, ten billion, one hundred million, two thousand, two hundred one".