21033110001 has 8 divisors (see below), whose sum is σ = 28155877344. Its totient is φ = 13966208000.

The previous prime is 21033109997. The next prime is 21033110011. The reversal of 21033110001 is 10001133012.

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 21033110001 - 2² = 21033109997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21033110011) 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, 13965456 + ... + 13966961.

It is an arithmetic number, because the mean of its divisors is an integer number (3519484668).

Almost surely, 2^21033110001 is an apocalyptic number.

It is an amenable number.

21033110001 is a deficient number, since it is larger than the sum of its proper divisors (7122767343).

21033110001 is a wasteful number, since it uses less digits than its factorization.

21033110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27932671.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 21033110001 its reverse (10001133012), we get a palindrome (31034243013).

The spelling of 21033110001 in words is "twenty-one billion, thirty-three million, one hundred ten thousand, one".