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121311230222 = 27132329279901
BaseRepresentation
bin111000011111010110…
…1100111100100001110
3102121010101111000012202
41300332231213210032
53441421133331342
6131421332401502
711523130305020
oct1607655474416
9377111430182
10121311230222
11474a2032866
121b616a76292
13b593a54b40
145c2b54c010
153250163332
hex1c3eb6790e

121311230222 has 64 divisors (see below), whose sum is σ = 233800003584. Its totient is φ = 45884361600.

The previous prime is 121311230177. The next prime is 121311230233. The reversal of 121311230222 is 222032113121.

It is a super-3 number, since 3×1213112302223 (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121311230194 and 121311230203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12247472 + ... + 12257372.

It is an arithmetic number, because the mean of its divisors is an integer number (3653125056).

Almost surely, 2121311230222 is an apocalyptic number.

121311230222 is a deficient number, since it is larger than the sum of its proper divisors (112488773362).

121311230222 is a wasteful number, since it uses less digits than its factorization.

121311230222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12873.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121311230222 its reverse (222032113121), we get a palindrome (343343343343).

The spelling of 121311230222 in words is "one hundred twenty-one billion, three hundred eleven million, two hundred thirty thousand, two hundred twenty-two".

Divisors: 1 2 7 13 14 23 26 46 91 161 182 299 322 598 2093 2927 4186 5854 9901 19802 20489 38051 40978 67321 69307 76102 128713 134642 138614 227723 257426 266357 455446 471247 532714 875173 900991 942494 1594061 1750346 1801982 2960399 3188122 5920798 6126211 12252422 20722793 28980227 41445586 57960454 202861589 376742951 405723178 666545221 753485902 1333090442 2637200657 4665816547 5274401314 8665087873 9331633094 17330175746 60655615111 121311230222