21033110102 has 8 divisors (see below), whose sum is σ = 32144942016. Its totient is φ = 10318129432.

The previous prime is 21033110099. The next prime is 21033110191. The reversal of 21033110102 is 20101133012.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 99212678 + ... + 99212889.

It is an arithmetic number, because the mean of its divisors is an integer number (4018117752).

Almost surely, 2^21033110102 is an apocalyptic number.

21033110102 is a deficient number, since it is larger than the sum of its proper divisors (11111831914).

21033110102 is a wasteful number, since it uses less digits than its factorization.

21033110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198425622.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21033110102 its reverse (20101133012), we get a palindrome (41134243114).

The spelling of 21033110102 in words is "twenty-one billion, thirty-three million, one hundred ten thousand, one hundred two".