221311032133 has 8 divisors (see below), whose sum is σ = 222764544000. Its totient is φ = 219859523568.

The previous prime is 221311032097. The next prime is 221311032149. The reversal of 221311032133 is 331230113122.

221311032133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221311032133 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 (221311032233) 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 7 ways as a sum of consecutive naturals, for example, 278833 + ... + 721366.

It is an arithmetic number, because the mean of its divisors is an integer number (27845568000).

Almost surely, 2^221311032133 is an apocalyptic number.

It is an amenable number.

221311032133 is a deficient number, since it is larger than the sum of its proper divisors (1453511867).

221311032133 is a wasteful number, since it uses less digits than its factorization.

221311032133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001651.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 221311032133 its reverse (331230113122), we get a palindrome (552541145255).

The spelling of 221311032133 in words is "two hundred twenty-one billion, three hundred eleven million, thirty-two thousand, one hundred thirty-three".