21300033242 has 8 divisors (see below), whose sum is σ = 32083732800. Its totient is φ = 10605455644.

The previous prime is 21300033229. The next prime is 21300033247. The reversal of 21300033242 is 24233000312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21300033242² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21300033247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22279892 + ... + 22280847.

It is an arithmetic number, because the mean of its divisors is an integer number (4010466600).

Almost surely, 2^21300033242 is an apocalyptic number.

21300033242 is a deficient number, since it is larger than the sum of its proper divisors (10783699558).

21300033242 is a wasteful number, since it uses less digits than its factorization.

21300033242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44560980.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21300033242 its reverse (24233000312), we get a palindrome (45533033554).

The spelling of 21300033242 in words is "twenty-one billion, three hundred million, thirty-three thousand, two hundred forty-two".