21232413224044 has 24 divisors (see below), whose sum is σ = 41397045516288. Its totient is φ = 9445754431440.

The previous prime is 21232413224027. The next prime is 21232413224047. The reversal of 21232413224044 is 44042231423212.

It is not an unprimeable number, because it can be changed into a prime (21232413224047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5133560124 + ... + 5133564259.

It is an arithmetic number, because the mean of its divisors is an integer number (1724876896512).

Almost surely, 2^{21232413224044} is an apocalyptic number.

It is an amenable number.

21232413224044 is a deficient number, since it is larger than the sum of its proper divisors (20164632292244).

21232413224044 is a wasteful number, since it uses less digits than its factorization.

21232413224044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10267124445 (or 10267124443 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 21232413224044 its reverse (44042231423212), we get a palindrome (65274644647256).

The spelling of 21232413224044 in words is "twenty-one trillion, two hundred thirty-two billion, four hundred thirteen million, two hundred twenty-four thousand, forty-four".