21210201320211 has 24 divisors (see below), whose sum is σ = 30644081692224. Its totient is φ = 14136846600240.

The previous prime is 21210201320201. The next prime is 21210201320221. The reversal of 21210201320211 is 11202310201212.

21210201320211 is a `hidden beast` number, since 2 + 121 + 0 + 201 + 320 + 21 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (21210201320201) and next prime (21210201320221).

It is not a de Polignac number, because 21210201320211 - 2¹⁰ = 21210201319187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21210201320201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1266499140 + ... + 1266515886.

It is an arithmetic number, because the mean of its divisors is an integer number (1276836737176).

Almost surely, 2^{21210201320211} is an apocalyptic number.

21210201320211 is a deficient number, since it is larger than the sum of its proper divisors (9433880372013).

21210201320211 is a wasteful number, since it uses less digits than its factorization.

21210201320211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41071 (or 41068 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21210201320211 its reverse (11202310201212), we get a palindrome (32412511521423).

The spelling of 21210201320211 in words is "twenty-one trillion, two hundred ten billion, two hundred one million, three hundred twenty thousand, two hundred eleven".