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212010220311 = 3711108389809
BaseRepresentation
bin1100010101110011001…
…0110011101100010111
3202021020100122002110220
43011130302303230113
511433144104022221
6241221322445423
721213545065401
oct3053462635427
9667210562426
10212010220311
1181a0527350a
1235109963873
1316cb9621906
14a3931ddb71
1557aca630c6
hex315ccb3b17

212010220311 has 16 divisors (see below), whose sum is σ = 286690763520. Its totient is φ = 139335315840.

The previous prime is 212010220309. The next prime is 212010220339. The reversal of 212010220311 is 113022010212.

It is not a de Polignac number, because 212010220311 - 21 = 212010220309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212010220351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2315775 + ... + 2405583.

It is an arithmetic number, because the mean of its divisors is an integer number (17918172720).

Almost surely, 2212010220311 is an apocalyptic number.

212010220311 is a deficient number, since it is larger than the sum of its proper divisors (74680543209).

212010220311 is a wasteful number, since it uses less digits than its factorization.

212010220311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100966.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212010220311 its reverse (113022010212), we get a palindrome (325032230523).

The spelling of 212010220311 in words is "two hundred twelve billion, ten million, two hundred twenty thousand, three hundred eleven".

Divisors: 1 3 71 213 11083 33249 89809 269427 786893 2360679 6376439 19129317 995353147 2986059441 70670073437 212010220311