221012200033 has 24 divisors (see below), whose sum is σ = 237751606400. Its totient is φ = 205386651648.

The previous prime is 221012200021. The next prime is 221012200037. The reversal of 221012200033 is 330002210122.

221012200033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-221012200033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221012200037) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 12297508 + ... + 12315466.

Almost surely, 2^221012200033 is an apocalyptic number.

It is an amenable number.

221012200033 is a deficient number, since it is larger than the sum of its proper divisors (16739406367).

221012200033 is a wasteful number, since it uses less digits than its factorization.

221012200033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18529 (or 18512 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 221012200033 its reverse (330002210122), we get a palindrome (551014410155).

The spelling of 221012200033 in words is "two hundred twenty-one billion, twelve million, two hundred thousand, thirty-three".