21843227210135 has 16 divisors (see below), whose sum is σ = 27361432869120. Its totient is φ = 16720875621120.

The previous prime is 21843227210093. The next prime is 21843227210137. The reversal of 21843227210135 is 53101272234812.

It is not a de Polignac number, because 21843227210135 - 2²⁴ = 21843210432919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21843227210092 and 21843227210101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21843227210137) 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, 791694332 + ... + 791721921.

It is an arithmetic number, because the mean of its divisors is an integer number (1710089554320).

Almost surely, 2^{21843227210135} is an apocalyptic number.

21843227210135 is a deficient number, since it is larger than the sum of its proper divisors (5518205658985).

21843227210135 is a wasteful number, since it uses less digits than its factorization.

21843227210135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583416378.

The product of its (nonzero) digits is 161280, while the sum is 41.

Adding to 21843227210135 its reverse (53101272234812), we get a palindrome (74944499444947).

The spelling of 21843227210135 in words is "twenty-one trillion, eight hundred forty-three billion, two hundred twenty-seven million, two hundred ten thousand, one hundred thirty-five".