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210012122012111 = 2272719340258747
BaseRepresentation
bin101111110000000101000001…
…111011100101100111001111
31000112120221222212120022220022
4233300011001323211213033
5210011314311213341421
62022354123103212355
762143606106250236
oct5760050173454717
91015527885508808
10210012122012111
1160a097059644a1
121b67990a8a70bb
13902509a92b923
1439c08d8a51b1d
151942d6d3047ab
hexbf0141ee59cf

210012122012111 has 8 divisors (see below), whose sum is σ = 211014865159680. Its totient is φ = 209010059387928.

The previous prime is 210012122012107. The next prime is 210012122012117. The reversal of 210012122012111 is 111210221210012.

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 210012122012111 - 22 = 210012122012107 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 210012122012111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012122012117) 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, 169512161 + ... + 170746586.

It is an arithmetic number, because the mean of its divisors is an integer number (26376858144960).

Almost surely, 2210012122012111 is an apocalyptic number.

210012122012111 is a deficient number, since it is larger than the sum of its proper divisors (1002743147569).

210012122012111 is a wasteful number, since it uses less digits than its factorization.

210012122012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340261693.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 210012122012111 its reverse (111210221210012), we get a palindrome (321222343222123).

The spelling of 210012122012111 in words is "two hundred ten trillion, twelve billion, one hundred twenty-two million, twelve thousand, one hundred eleven".

Divisors: 1 227 2719 617213 340258747 77238735569 925163533093 210012122012111