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2201320221 = 31938619653
BaseRepresentation
bin1000001100110101…
…0111101100011101
312200102011122122120
42003031113230131
514002014221341
61002233533153
7105356625132
oct20315275435
95612148576
102201320221
11a2a651511
125152741b9
132910a4559
1416c502589
15cd3cd066
hex83357b1d

2201320221 has 8 divisors (see below), whose sum is σ = 3089572320. Its totient is φ = 1390307472.

The previous prime is 2201320211. The next prime is 2201320229. The reversal of 2201320221 is 1220231022.

It is a happy number.

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

It is not a de Polignac number, because 2201320221 - 218 = 2201058077 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2201320221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201320229) 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 7 ways as a sum of consecutive naturals, for example, 19309770 + ... + 19309883.

It is an arithmetic number, because the mean of its divisors is an integer number (386196540).

Almost surely, 22201320221 is an apocalyptic number.

It is an amenable number.

2201320221 is a deficient number, since it is larger than the sum of its proper divisors (888252099).

2201320221 is a wasteful number, since it uses less digits than its factorization.

2201320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38619675.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2201320221 is about 46918.2290906211. The cubic root of 2201320221 is about 1300.8515566671.

Adding to 2201320221 its reverse (1220231022), we get a palindrome (3421551243).

The spelling of 2201320221 in words is "two billion, two hundred one million, three hundred twenty thousand, two hundred twenty-one".

Divisors: 1 3 19 57 38619653 115858959 733773407 2201320221