21320010032211 has 64 divisors (see below), whose sum is σ = 36275306496000. Its totient is φ = 12239392235040.

The previous prime is 21320010032207. The next prime is 21320010032329. The reversal of 21320010032211 is 11223001002312.

21320010032211 is a `hidden beast` number, since 2 + 1 + 320 + 0 + 10 + 0 + 322 + 11 = 666.

It is not a de Polignac number, because 21320010032211 - 2² = 21320010032207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21320010032611) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39452706 + ... + 39989448.

It is an arithmetic number, because the mean of its divisors is an integer number (566801664000).

Almost surely, 2^{21320010032211} is an apocalyptic number.

21320010032211 is a deficient number, since it is larger than the sum of its proper divisors (14955296463789).

21320010032211 is a wasteful number, since it uses less digits than its factorization.

21320010032211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543821 (or 543815 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21320010032211 its reverse (11223001002312), we get a palindrome (32543011034523).

The spelling of 21320010032211 in words is "twenty-one trillion, three hundred twenty billion, ten million, thirty-two thousand, two hundred eleven".