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2222030221 = 19434926891
BaseRepresentation
bin1000010001110001…
…0111110110001101
312201212010211102121
42010130113312031
514022314431341
61004253452541
7106030642135
oct20434276615
95655124377
102222030221
11a40307214
125201a1151
13295475ba8
14171173ac5
15d011e4d1
hex84717d8d

2222030221 has 8 divisors (see below), whose sum is σ = 2339604000. Its totient is φ = 2104518960.

The previous prime is 2222030201. The next prime is 2222030243. The reversal of 2222030221 is 1220302222.

2222030221 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 not a de Polignac number, because 2222030221 - 211 = 2222028173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222030195 and 2222030204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222030201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69186 + ... + 96076.

It is an arithmetic number, because the mean of its divisors is an integer number (292450500).

Almost surely, 22222030221 is an apocalyptic number.

It is an amenable number.

2222030221 is a deficient number, since it is larger than the sum of its proper divisors (117573779).

2222030221 is a wasteful number, since it uses less digits than its factorization.

2222030221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31259.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2222030221 is about 47138.4155546196. The cubic root of 2222030221 is about 1304.9182963386.

Adding to 2222030221 its reverse (1220302222), we get a palindrome (3442332443).

It can be divided in two parts, 22220 and 30221, that added together give a square (52441 = 2292).

The spelling of 2222030221 in words is "two billion, two hundred twenty-two million, thirty thousand, two hundred twenty-one".

Divisors: 1 19 4349 26891 82631 510929 116948959 2222030221