21333240002 has 8 divisors (see below), whose sum is σ = 33391158336. Its totient is φ = 10202853892.

The previous prime is 21333239971. The next prime is 21333240011. The reversal of 21333240002 is 20004233312.

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

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, 231882998 + ... + 231883089.

It is an arithmetic number, because the mean of its divisors is an integer number (4173894792).

Almost surely, 2^21333240002 is an apocalyptic number.

21333240002 is a deficient number, since it is larger than the sum of its proper divisors (12057918334).

21333240002 is a wasteful number, since it uses less digits than its factorization.

21333240002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463766112.

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

Adding to 21333240002 its reverse (20004233312), we get a palindrome (41337473314).

The spelling of 21333240002 in words is "twenty-one billion, three hundred thirty-three million, two hundred forty thousand, two".