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212302231122 = 231953251139991
BaseRepresentation
bin1100010110111000110…
…0101111011001010010
3202021222201002210000010
43011232030233121102
511434243332343442
6241310313335350
721224022122022
oct3055614573122
9667881083003
10212302231122
1182045090563
123518b707556
1317034c83187
14a3bdcd3a82
1557c84e4b9c
hex316e32f652

212302231122 has 64 divisors (see below), whose sum is σ = 457202672640. Its totient is φ = 65515320000.

The previous prime is 212302231121. The next prime is 212302231177. The reversal of 212302231122 is 221132203212.

It is not an unprimeable number, because it can be changed into a prime (212302231121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1446547 + ... + 1586537.

It is an arithmetic number, because the mean of its divisors is an integer number (7143791760).

Almost surely, 2212302231122 is an apocalyptic number.

212302231122 is an abundant number, since it is smaller than the sum of its proper divisors (244900441518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212302231122 is a wasteful number, since it uses less digits than its factorization.

212302231122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140319.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212302231122 its reverse (221132203212), we get a palindrome (433434434334).

The spelling of 212302231122 in words is "two hundred twelve billion, three hundred two million, two hundred thirty-one thousand, one hundred twenty-two".

Divisors: 1 2 3 6 19 38 53 57 106 114 159 251 318 502 753 1007 1506 2014 3021 4769 6042 9538 13303 14307 26606 28614 39909 79818 139991 252757 279982 419973 505514 758271 839946 1516542 2659829 5319658 7419523 7979487 14839046 15958974 22258569 35137741 44517138 70275482 105413223 140970937 210826446 281941874 422912811 667617079 845825622 1335234158 1862300273 2002851237 3724600546 4005702474 5586900819 11173801638 35383705187 70767410374 106151115561 212302231122