21441532355322 has 16 divisors (see below), whose sum is σ = 42883759207200. Its totient is φ = 7147061702352.

The previous prime is 21441532355171. The next prime is 21441532355351. The reversal of 21441532355322 is 22355323514412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28535572 + ... + 29277327.

It is an arithmetic number, because the mean of its divisors is an integer number (2680234950450).

Almost surely, 2^{21441532355322} is an apocalyptic number.

21441532355322 is an abundant number, since it is smaller than the sum of its proper divisors (21442226851878).

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

21441532355322 is a wasteful number, since it uses less digits than its factorization.

21441532355322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57874717.

The product of its digits is 864000, while the sum is 42.

Adding to 21441532355322 its reverse (22355323514412), we get a palindrome (43796855869734).

The spelling of 21441532355322 in words is "twenty-one trillion, four hundred forty-one billion, five hundred thirty-two million, three hundred fifty-five thousand, three hundred twenty-two".