221210100033 has 64 divisors (see below), whose sum is σ = 327611547648. Its totient is φ = 131908250880.

The previous prime is 221210099939. The next prime is 221210100037. The reversal of 221210100033 is 330001012122.

It is not a de Polignac number, because 221210100033 - 2⁸ = 221210099777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221210099985 and 221210100021.

It is not an unprimeable number, because it can be changed into a prime (221210100037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 161113735 + ... + 161115107.

It is an arithmetic number, because the mean of its divisors is an integer number (5118930432).

Almost surely, 2^221210100033 is an apocalyptic number.

It is an amenable number.

221210100033 is a deficient number, since it is larger than the sum of its proper divisors (106401447615).

221210100033 is a wasteful number, since it uses less digits than its factorization.

221210100033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 221210100033 its reverse (330001012122), we get a palindrome (551211112155).

The spelling of 221210100033 in words is "two hundred twenty-one billion, two hundred ten million, one hundred thousand, thirty-three".