21033330029 has 8 divisors (see below), whose sum is σ = 21392380800. Its totient is φ = 20674738800.

The previous prime is 21033330013. The next prime is 21033330041. The reversal of 21033330029 is 92003333012.

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 21033330029 - 2⁴ = 21033330013 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 (21033330629) 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, 21929 + ... + 206270.

It is an arithmetic number, because the mean of its divisors is an integer number (2674047600).

Almost surely, 2^21033330029 is an apocalyptic number.

It is an amenable number.

21033330029 is a deficient number, since it is larger than the sum of its proper divisors (359050771).

21033330029 is a wasteful number, since it uses less digits than its factorization.

21033330029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229771.

The product of its (nonzero) digits is 2916, while the sum is 26.

The spelling of 21033330029 in words is "twenty-one billion, thirty-three million, three hundred thirty thousand, twenty-nine".