21333130233229 has 8 divisors (see below), whose sum is σ = 21736044257400. Its totient is φ = 20930231102976.

The previous prime is 21333130233203. The next prime is 21333130233251. The reversal of 21333130233229 is 92233203133312.

It can be written as a sum of positive squares in 4 ways, for example, as 4534386948100 + 16798743285129 = 2129410^2 + 4098627^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 21333130233229 - 2⁷ = 21333130233101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21333130237229) 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, 810432 + ... + 6582025.

It is an arithmetic number, because the mean of its divisors is an integer number (2717005532175).

Almost surely, 2^{21333130233229} is an apocalyptic number.

It is an amenable number.

21333130233229 is a deficient number, since it is larger than the sum of its proper divisors (402914024171).

21333130233229 is an equidigital number, since it uses as much as digits as its factorization.

21333130233229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7446959.

The product of its (nonzero) digits is 104976, while the sum is 37.

The spelling of 21333130233229 in words is "twenty-one trillion, three hundred thirty-three billion, one hundred thirty million, two hundred thirty-three thousand, two hundred twenty-nine".