21244424114210 has 24 divisors (see below), whose sum is σ = 42032356472988. Its totient is φ = 7725245132000.

The previous prime is 21244424114197. The next prime is 21244424114219. The reversal of 21244424114210 is 1241142444212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19666413310489 + 1578010803721 = 4434683^2 + 1256189^2 .

It is not an unprimeable number, because it can be changed into a prime (21244424114219) 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, 8778686441 + ... + 8778688860.

Almost surely, 2^{21244424114210} is an apocalyptic number.

21244424114210 is a deficient number, since it is larger than the sum of its proper divisors (20787932358778).

21244424114210 is a wasteful number, since it uses less digits than its factorization.

21244424114210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17557375330 (or 17557375319 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

Adding to 21244424114210 its reverse (1241142444212), we get a palindrome (22485566558422).

The spelling of 21244424114210 in words is "twenty-one trillion, two hundred forty-four billion, four hundred twenty-four million, one hundred fourteen thousand, two hundred ten".