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210211101212011 = 9773917231701979
BaseRepresentation
bin101111110010111110010110…
…000000111111110101101011
31000120021222121002000222220121
4233302332112000333311223
5210023044313402241021
62023025351410104111
762164152023452534
oct5762762600776553
91016258532028817
10210211101212011
1160a86033495449
121b6b03a057b037
13903aa8b60a273
1439ca3b332d68b
151948116d39741
hexbf2f9603fd6b

210211101212011 has 16 divisors (see below), whose sum is σ = 212789164470400. Its totient is φ = 207641751706368.

The previous prime is 210211101212003. The next prime is 210211101212029. The reversal of 210211101212011 is 110212101112012.

It is a cyclic number.

It is not a de Polignac number, because 210211101212011 - 23 = 210211101212003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210211101212111) 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, 122658820 + ... + 124360798.

It is an arithmetic number, because the mean of its divisors is an integer number (13299322779400).

Almost surely, 2210211101212011 is an apocalyptic number.

210211101212011 is a deficient number, since it is larger than the sum of its proper divisors (2578063258389).

210211101212011 is a wasteful number, since it uses less digits than its factorization.

210211101212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704538.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 210211101212011 its reverse (110212101112012), we get a palindrome (320423202324023).

Subtracting from 210211101212011 its reverse (110212101112012), we obtain a palindrome (99999000099999).

The spelling of 210211101212011 in words is "two hundred ten trillion, two hundred eleven billion, one hundred one million, two hundred twelve thousand, eleven".

Divisors: 1 97 739 1723 71683 167131 1273297 1701979 123509809 165091963 1257762481 2932509817 122002960657 284453452249 2167124754763 210211101212011