221310301332 has 12 divisors (see below), whose sum is σ = 516390703136. Its totient is φ = 73770100440.

The previous prime is 221310301297. The next prime is 221310301351. The reversal of 221310301332 is 233103013122.

221310301332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×221310301332³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221310301299 and 221310301308.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9221262544 + ... + 9221262567.

Almost surely, 2^221310301332 is an apocalyptic number.

It is an amenable number.

221310301332 is an abundant number, since it is smaller than the sum of its proper divisors (295080401804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221310301332 is a wasteful number, since it uses less digits than its factorization.

221310301332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18442525118 (or 18442525116 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 221310301332 its reverse (233103013122), we get a palindrome (454413314454).

The spelling of 221310301332 in words is "two hundred twenty-one billion, three hundred ten million, three hundred one thousand, three hundred thirty-two".