21224336060 has 48 divisors (see below), whose sum is σ = 46620403200. Its totient is φ = 8101161024.

The previous prime is 21224336027. The next prime is 21224336117. The reversal of 21224336060 is 6063342212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137681 + ... + 247799.

It is an arithmetic number, because the mean of its divisors is an integer number (971258400).

Almost surely, 2^21224336060 is an apocalyptic number.

21224336060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21224336060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23310201600).

21224336060 is an abundant number, since it is smaller than the sum of its proper divisors (25396067140).

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

21224336060 is a wasteful number, since it uses less digits than its factorization.

21224336060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110570 (or 110568 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 21224336060 its reverse (6063342212), we get a palindrome (27287678272).

The spelling of 21224336060 in words is "twenty-one billion, two hundred twenty-four million, three hundred thirty-six thousand, sixty".