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212010100211111 = 3149133913919179
BaseRepresentation
bin110000001101001001110010…
…101101100011110110100111
31000210122222010102001001021212
4300031021302231203312213
5210242033141123223421
62030524032342102035
762441136631603616
oct6015116255436647
91023588112031255
10212010100211111
1161609a84528264
121b940b8971a91b
13913b60b354837
143a4d4b4bad87d
151979d08a64e5b
hexc0d272b63da7

212010100211111 has 8 divisors (see below), whose sum is σ = 218849596838400. Its totient is φ = 205170632404920.

The previous prime is 212010100211071. The next prime is 212010100211131. The reversal of 212010100211111 is 111112001010212.

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 212010100211111 - 234 = 211992920341927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212010100211131) 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, 8271920 + ... + 22191098.

It is an arithmetic number, because the mean of its divisors is an integer number (27356199604800).

Almost surely, 2212010100211111 is an apocalyptic number.

212010100211111 is a deficient number, since it is larger than the sum of its proper divisors (6839496627289).

212010100211111 is a wasteful number, since it uses less digits than its factorization.

212010100211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14410549.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 212010100211111 its reverse (111112001010212), we get a palindrome (323122101221323).

The spelling of 212010100211111 in words is "two hundred twelve trillion, ten billion, one hundred million, two hundred eleven thousand, one hundred eleven".

Divisors: 1 31 491339 13919179 15231509 431494549 6839035490681 212010100211111