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7121102212 = 227254325079
BaseRepresentation
bin1101010000111001…
…10110010110000100
3200101021121110210101
412220130312112010
5104041000232322
63134341533444
7341316240640
oct65034662604
920337543711
107121102212
113024749544
121468a14284
13896427763
144b7a81c20
152ba28b327
hex1a8736584

7121102212 has 12 divisors (see below), whose sum is σ = 14242204480. Its totient is φ = 3051900936.

The previous prime is 7121102203. The next prime is 7121102227. The reversal of 7121102212 is 2122011217.

7121102212 is an admirable number.

It is a super-3 number, since 3×71211022123 (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7121102212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127162512 + ... + 127162567.

Almost surely, 27121102212 is an apocalyptic number.

It is an amenable number.

7121102212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7121102212 is a wasteful number, since it uses less digits than its factorization.

7121102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254325090 (or 254325088 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 7121102212 is about 84386.6234186438. The cubic root of 7121102212 is about 1923.8996094334.

Adding to 7121102212 its reverse (2122011217), we get a palindrome (9243113429).

The spelling of 7121102212 in words is "seven billion, one hundred twenty-one million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 254325079 508650158 1017300316 1780275553 3560551106 7121102212