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212203003211 = 375735216303
BaseRepresentation
bin1100010110100001001…
…0001101110101001011
3202021201210101110220022
43011220102031311023
511434042432100321
6241252410451055
721221405523563
oct3055022156513
9667653343808
10212203003211
1181aa4077121
1235162433a8b
131701a54cc34
14a3b0a63da3
1557be943dab
hex316848dd4b

212203003211 has 4 divisors (see below), whose sum is σ = 217938219552. Its totient is φ = 206467786872.

The previous prime is 212203003169. The next prime is 212203003277. The reversal of 212203003211 is 112300302212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 212203003211 - 222 = 212198808907 is a prime.

It is a super-2 number, since 2×2122030032112 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212203003211.

It is not an unprimeable number, because it can be changed into a prime (212203002211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2867608115 + ... + 2867608188.

It is an arithmetic number, because the mean of its divisors is an integer number (54484554888).

Almost surely, 2212203003211 is an apocalyptic number.

212203003211 is a deficient number, since it is larger than the sum of its proper divisors (5735216341).

212203003211 is an equidigital number, since it uses as much as digits as its factorization.

212203003211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735216340.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212203003211 its reverse (112300302212), we get a palindrome (324503305423).

The spelling of 212203003211 in words is "two hundred twelve billion, two hundred three million, three thousand, two hundred eleven".

Divisors: 1 37 5735216303 212203003211