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210211122111101 = 10911243171532723
BaseRepresentation
bin101111110010111110010111…
…010000101110001001111101
31000120021222122112100210001222
4233302332113100232021331
5210023044334230023401
62023025353434043125
762164152366215036
oct5762762720561175
91016258575323058
10210211122111101
1160a8604426a221
121b6b03a75794a5
13903aa92a469a7
1439ca3b600da8d
151948118ab6c1b
hexbf2f9742e27d

210211122111101 has 8 divisors (see below), whose sum is σ = 212158534352160. Its totient is φ = 208264052958192.

The previous prime is 210211122111091. The next prime is 210211122111119. The reversal of 210211122111101 is 101111221112012.

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 210211122111101 - 222 = 210211117916797 is a prime.

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 210211122111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210211122111121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84540875 + ... + 86991848.

It is an arithmetic number, because the mean of its divisors is an integer number (26519816794020).

Almost surely, 2210211122111101 is an apocalyptic number.

It is an amenable number.

210211122111101 is a deficient number, since it is larger than the sum of its proper divisors (1947412241059).

210211122111101 is a wasteful number, since it uses less digits than its factorization.

210211122111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171544075.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 210211122111101 its reverse (101111221112012), we get a palindrome (311322343223113).

The spelling of 210211122111101 in words is "two hundred ten trillion, two hundred eleven billion, one hundred twenty-two million, one hundred eleven thousand, one hundred one".

Divisors: 1 109 11243 1225487 171532723 18697066807 1928542404689 210211122111101