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122213521010 = 25721979126031
BaseRepresentation
bin111000111010001111…
…1100101011001110010
3102200110021022010111002
41301310133211121302
54000243130133020
6132051043522002
711554364534300
oct1616437453162
9380407263432
10122213521010
114791538a229
121b829089302
13b6a8971109
145cb5303270
1532a4493975
hex1c747e5672

122213521010 has 48 divisors (see below), whose sum is σ = 256031487360. Its totient is φ = 41880273120.

The previous prime is 122213520983. The next prime is 122213521013. The reversal of 122213521010 is 10125312221.

It is a super-2 number, since 2×1222135210102 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122213521013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 906695 + ... + 1032725.

It is an arithmetic number, because the mean of its divisors is an integer number (5333989320).

Almost surely, 2122213521010 is an apocalyptic number.

122213521010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122213521010 is an abundant number, since it is smaller than the sum of its proper divisors (133817966350).

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

122213521010 is a wasteful number, since it uses less digits than its factorization.

122213521010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128031 (or 128024 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 122213521010 its reverse (10125312221), we get a palindrome (132338833231).

The spelling of 122213521010 in words is "one hundred twenty-two billion, two hundred thirteen million, five hundred twenty-one thousand, ten".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 1979 3958 9895 13853 19790 27706 69265 96971 126031 138530 193942 252062 484855 630155 882217 969710 1260310 1764434 4411085 6175519 8822170 12351038 30877595 61755190 249415349 498830698 1247076745 1745907443 2494153490 3491814886 8729537215 12221352101 17459074430 24442704202 61106760505 122213521010