21365447441110 has 8 divisors (see below), whose sum is σ = 38457805394016. Its totient is φ = 8546178976440.

The previous prime is 21365447441071. The next prime is 21365447441119. The reversal of 21365447441110 is 1114474456312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21365447441119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068272372046 + ... + 1068272372065.

It is an arithmetic number, because the mean of its divisors is an integer number (4807225674252).

Almost surely, 2^{21365447441110} is an apocalyptic number.

21365447441110 is a deficient number, since it is larger than the sum of its proper divisors (17092357952906).

21365447441110 is a wasteful number, since it uses less digits than its factorization.

21365447441110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136544744118.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 21365447441110 in words is "twenty-one trillion, three hundred sixty-five billion, four hundred forty-seven million, four hundred forty-one thousand, one hundred ten".