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200212221 = 3116067037
BaseRepresentation
bin10111110111011…
…11111011111101
3111221201211112110
423323233323331
5402223242341
631511124233
74650530046
oct1373577375
9457654473
10200212221
11a3018450
1257073679
133262ca91
141c8398cd
151289c216
hexbeefefd

200212221 has 8 divisors (see below), whose sum is σ = 291217824. Its totient is φ = 121340720.

The previous prime is 200212163. The next prime is 200212223. The reversal of 200212221 is 122212002.

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 200212221 - 210 = 200211197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200212197 and 200212206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200212223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3033486 + ... + 3033551.

It is an arithmetic number, because the mean of its divisors is an integer number (36402228).

Almost surely, 2200212221 is an apocalyptic number.

It is an amenable number.

200212221 is a deficient number, since it is larger than the sum of its proper divisors (91005603).

200212221 is a wasteful number, since it uses less digits than its factorization.

200212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6067051.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 200212221 is about 14149.6367797905. The cubic root of 200212221 is about 585.0103205134.

Adding to 200212221 its reverse (122212002), we get a palindrome (322424223).

It can be divided in two parts, 2002 and 12221, that multiplied together give a palindrome (24466442).

The spelling of 200212221 in words is "two hundred million, two hundred twelve thousand, two hundred twenty-one".

Divisors: 1 3 11 33 6067037 18201111 66737407 200212221