221000323133 has 8 divisors (see below), whose sum is σ = 221716750008. Its totient is φ = 220284255744.

The previous prime is 221000323129. The next prime is 221000323189. The reversal of 221000323133 is 331323000122.

221000323133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 51784918969 + 169215404164 = 227563^2 + 411358^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 221000323133 - 2² = 221000323129 is a prime.

It is a super-2 number, since 2×221000323133² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221000323633) 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, 1170185 + ... + 1345857.

It is an arithmetic number, because the mean of its divisors is an integer number (27714593751).

Almost surely, 2^221000323133 is an apocalyptic number.

It is an amenable number.

221000323133 is a deficient number, since it is larger than the sum of its proper divisors (716426875).

221000323133 is a wasteful number, since it uses less digits than its factorization.

221000323133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179743.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 221000323133 its reverse (331323000122), we get a palindrome (552323323255).

The spelling of 221000323133 in words is "two hundred twenty-one billion, three hundred twenty-three thousand, one hundred thirty-three".