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122130244444 = 221323805912671
BaseRepresentation
bin111000110111110000…
…1111010001101011100
3102200020110121020111211
41301233201322031130
54000110320310234
6132034510554204
711552333643415
oct1615741721534
9380213536454
10122130244444
114788238031a
121b805208964
13b694634540
145ca822680c
15329bee4164
hex1c6f87a35c

122130244444 has 48 divisors (see below), whose sum is σ = 240224624640. Its totient is φ = 53906086080.

The previous prime is 122130244427. The next prime is 122130244477. The reversal of 122130244444 is 444442031221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9632229 + ... + 9644899.

It is an arithmetic number, because the mean of its divisors is an integer number (5004679680).

Almost surely, 2122130244444 is an apocalyptic number.

It is an amenable number.

122130244444 is a deficient number, since it is larger than the sum of its proper divisors (118094380196).

122130244444 is a wasteful number, since it uses less digits than its factorization.

122130244444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20770 (or 20768 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 122130244444 its reverse (444442031221), we get a palindrome (566572275665).

The spelling of 122130244444 in words is "one hundred twenty-two billion, one hundred thirty million, two hundred forty-four thousand, four hundred forty-four".

Divisors: 1 2 4 13 23 26 46 52 92 299 598 1196 8059 12671 16118 25342 32236 50684 104767 164723 185357 209534 291433 329446 370714 419068 582866 658892 741428 1165732 2409641 3788629 4819282 7577258 9638564 15154516 102115589 204231178 408462356 1327502657 2348658547 2655005314 4697317094 5310010628 9394634188 30532561111 61065122222 122130244444