21333132223330 has 16 divisors (see below), whose sum is σ = 39336214539384. Its totient is φ = 8325124769920.

The previous prime is 21333132223309. The next prime is 21333132223367. The reversal of 21333132223330 is 3332223133312.

It can be written as a sum of positive squares in 4 ways, for example, as 9511617296281 + 11821514927049 = 3084091^2 + 3438243^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21333132223292 and 21333132223301.

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 7 ways as a sum of consecutive naturals, for example, 26016014497 + ... + 26016015316.

Almost surely, 2^{21333132223330} is an apocalyptic number.

21333132223330 is a deficient number, since it is larger than the sum of its proper divisors (18003082316054).

21333132223330 is a wasteful number, since it uses less digits than its factorization.

21333132223330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52032029861.

The product of its (nonzero) digits is 34992, while the sum is 31.

Adding to 21333132223330 its reverse (3332223133312), we get a palindrome (24665355356642).

The spelling of 21333132223330 in words is "twenty-one trillion, three hundred thirty-three billion, one hundred thirty-two million, two hundred twenty-three thousand, three hundred thirty".