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211211002011 = 3109376437201
BaseRepresentation
bin1100010010110100101…
…0000010000010011011
3202012011122202121002010
43010231022002002123
511430030004031021
6241010132441003
721155001616032
oct3045512020233
9665148677063
10211211002011
1181635116a19
1234b26179163
1316bbcb83789
14a318dd9719
1557627e2976
hex312d28209b

211211002011 has 8 divisors (see below), whose sum is σ = 281640461904. Its totient is φ = 140794438400.

The previous prime is 211211001887. The next prime is 211211002031. The reversal of 211211002011 is 110200112112.

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 211211002011 - 215 = 211210969243 is a prime.

It is a super-2 number, since 2×2112110020112 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211211002031) 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, 3185790 + ... + 3251411.

It is an arithmetic number, because the mean of its divisors is an integer number (35205057738).

Almost surely, 2211211002011 is an apocalyptic number.

211211002011 is a deficient number, since it is larger than the sum of its proper divisors (70429459893).

211211002011 is a wasteful number, since it uses less digits than its factorization.

211211002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6448141.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211211002011 its reverse (110200112112), we get a palindrome (321411114123).

The spelling of 211211002011 in words is "two hundred eleven billion, two hundred eleven million, two thousand, eleven".

Divisors: 1 3 10937 32811 6437201 19311603 70403667337 211211002011