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212203212203 = 1019901212203
BaseRepresentation
bin1100010110100001001…
…1000000110110101011
3202021201210210002120202
43011220103000312223
511434043010242303
6241252415142415
721221410354103
oct3055023006653
9667653702522
10212203212203
1181aa41aa144
1235162514a0b
131701a5c40b8
14a3b0aba203
1557be985c88
hex31684c0dab

212203212203 has 8 divisors (see below), whose sum is σ = 214326888816. Its totient is φ = 210079980000.

The previous prime is 212203212197. The next prime is 212203212209. The reversal of 212203212203 is 302212302212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212203212197) and next prime (212203212209).

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 212203212203 - 28 = 212203211947 is a prime.

It is a super-2 number, since 2×2122032122032 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212203212209) 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, 893900 + ... + 1106102.

It is an arithmetic number, because the mean of its divisors is an integer number (26790861102).

Almost surely, 2212203212203 is an apocalyptic number.

212203212203 is a deficient number, since it is larger than the sum of its proper divisors (2123676613).

212203212203 is a wasteful number, since it uses less digits than its factorization.

212203212203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222205.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212203212203 its reverse (302212302212), we get a palindrome (514415514415).

Subtracting 212203212203 from its reverse (302212302212), we obtain a palindrome (90009090009).

The spelling of 212203212203 in words is "two hundred twelve billion, two hundred three million, two hundred twelve thousand, two hundred three".

Divisors: 1 101 9901 212203 1000001 21432503 2101021903 212203212203