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30332201221 = 74333171603
BaseRepresentation
bin11100001111111100…
…001010100100000101
32220021220101110210001
4130033330022210011
5444110020414341
621533500201301
72122442312350
oct341774124405
986256343701
1030332201221
11119558117a3
125a66239231
132b25158a7a
14167a601297
15bc7d98d31
hex70ff0a905

30332201221 has 4 divisors (see below), whose sum is σ = 34665372832. Its totient is φ = 25999029612.

The previous prime is 30332201191. The next prime is 30332201233. The reversal of 30332201221 is 12210223303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30332201221 - 25 = 30332201189 is a prime.

It is a super-2 number, since 2×303322012212 (a number of 22 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 (30332201281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2166585795 + ... + 2166585808.

It is an arithmetic number, because the mean of its divisors is an integer number (8666343208).

Almost surely, 230332201221 is an apocalyptic number.

It is an amenable number.

30332201221 is a deficient number, since it is larger than the sum of its proper divisors (4333171611).

30332201221 is an equidigital number, since it uses as much as digits as its factorization.

30332201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333171610.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30332201221 its reverse (12210223303), we get a palindrome (42542424524).

The spelling of 30332201221 in words is "thirty billion, three hundred thirty-two million, two hundred one thousand, two hundred twenty-one".

Divisors: 1 7 4333171603 30332201221