21364113632211 has 12 divisors (see below), whose sum is σ = 35267743138992. Its totient is φ = 12208064932656.

The previous prime is 21364113632189. The next prime is 21364113632261. The reversal of 21364113632211 is 11223631146312.

21364113632211 is a `hidden beast` number, since 2 + 1 + 3 + 6 + 4 + 1 + 1 + 3 + 632 + 2 + 11 = 666.

It is not a de Polignac number, because 21364113632211 - 2¹⁵ = 21364113599443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21364113632261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169556457336 + ... + 169556457461.

It is an arithmetic number, because the mean of its divisors is an integer number (2938978594916).

Almost surely, 2^{21364113632211} is an apocalyptic number.

21364113632211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

21364113632211 is a deficient number, since it is larger than the sum of its proper divisors (13903629506781).

21364113632211 is a wasteful number, since it uses less digits than its factorization.

21364113632211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339112914810 (or 339112914807 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

Adding to 21364113632211 its reverse (11223631146312), we get a palindrome (32587744778523).

The spelling of 21364113632211 in words is "twenty-one trillion, three hundred sixty-four billion, one hundred thirteen million, six hundred thirty-two thousand, two hundred eleven".