21333120207 has 8 divisors (see below), whose sum is σ = 32507611776. Its totient is φ = 12190354392.

The previous prime is 21333120199. The next prime is 21333120227. The reversal of 21333120207 is 70202133312.

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

It is not a de Polignac number, because 21333120207 - 2³ = 21333120199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21333120227) 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, 507931413 + ... + 507931454.

It is an arithmetic number, because the mean of its divisors is an integer number (4063451472).

Almost surely, 2^21333120207 is an apocalyptic number.

21333120207 is a deficient number, since it is larger than the sum of its proper divisors (11174491569).

21333120207 is a wasteful number, since it uses less digits than its factorization.

21333120207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015862877.

The product of its (nonzero) digits is 1512, while the sum is 24.

Adding to 21333120207 its reverse (70202133312), we get a palindrome (91535253519).

The spelling of 21333120207 in words is "twenty-one billion, three hundred thirty-three million, one hundred twenty thousand, two hundred seven".