221203302133 has 32 divisors (see below), whose sum is σ = 259734885120. Its totient is φ = 186148085760.

The previous prime is 221203302127. The next prime is 221203302209. The reversal of 221203302133 is 331203302122.

It is a cyclic number.

It is not a de Polignac number, because 221203302133 - 2⁹ = 221203301621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221203302113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4878141 + ... + 4923277.

It is an arithmetic number, because the mean of its divisors is an integer number (8116715160).

Almost surely, 2^221203302133 is an apocalyptic number.

It is an amenable number.

221203302133 is a deficient number, since it is larger than the sum of its proper divisors (38531582987).

221203302133 is a wasteful number, since it uses less digits than its factorization.

221203302133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45597.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 221203302133 its reverse (331203302122), we get a palindrome (552406604255).

The spelling of 221203302133 in words is "two hundred twenty-one billion, two hundred three million, three hundred two thousand, one hundred thirty-three".