133220002221 has 12 divisors (see below), whose sum is σ = 192689292640. Its totient is φ = 88693149960.

The previous prime is 133220002217. The next prime is 133220002261. The reversal of 133220002221 is 122200022331.

It is not a de Polignac number, because 133220002221 - 2² = 133220002217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133220002194 and 133220002203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133220002211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10008385 + ... + 10021686.

Almost surely, 2^133220002221 is an apocalyptic number.

It is an amenable number.

133220002221 is a deficient number, since it is larger than the sum of its proper divisors (59469290419).

133220002221 is a wasteful number, since it uses less digits than its factorization.

133220002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20030816 (or 20030813 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 133220002221 its reverse (122200022331), we get a palindrome (255420024552).

The spelling of 133220002221 in words is "one hundred thirty-three billion, two hundred twenty million, two thousand, two hundred twenty-one".