21444244222410 has 96 divisors (see below), whose sum is σ = 59843438338320. Its totient is φ = 5308357607424.

The previous prime is 21444244222397. The next prime is 21444244222439. The reversal of 21444244222410 is 1422244244412.

21444244222410 is a `hidden beast` number, since 2 + 1 + 4 + 4 + 424 + 4 + 2 + 224 + 1 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 19621347300801 + 1822896921609 = 4429599^2 + 1350147^2 .

It is a super-2 number, since 2×21444244222410² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95887255 + ... + 96110634.

Almost surely, 2^{21444244222410} is an apocalyptic number.

21444244222410 is an abundant number, since it is smaller than the sum of its proper divisors (38399194115910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21444244222410 is a wasteful number, since it uses less digits than its factorization.

21444244222410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191997992 (or 191997989 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 36.

Adding to 21444244222410 its reverse (1422244244412), we get a palindrome (22866488466822).

The spelling of 21444244222410 in words is "twenty-one trillion, four hundred forty-four billion, two hundred forty-four million, two hundred twenty-two thousand, four hundred ten".