21522240141344 has 24 divisors (see below), whose sum is σ = 42760643407020. Its totient is φ = 10662394196736.

The previous prime is 21522240141319. The next prime is 21522240141373. The reversal of 21522240141344 is 44314104222512.

It can be written as a sum of positive squares in 2 ways, for example, as 17746167264400 + 3776072876944 = 4212620^2 + 1943212^2 .

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 3 ways as a sum of consecutive naturals, for example, 3085180019 + ... + 3085186994.

Almost surely, 2^{21522240141344} is an apocalyptic number.

It is an amenable number.

21522240141344 is a deficient number, since it is larger than the sum of its proper divisors (21238403265676).

21522240141344 is a wasteful number, since it uses less digits than its factorization.

21522240141344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6170367132 (or 6170367124 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 21522240141344 its reverse (44314104222512), we get a palindrome (65836344363856).

The spelling of 21522240141344 in words is "twenty-one trillion, five hundred twenty-two billion, two hundred forty million, one hundred forty-one thousand, three hundred forty-four".