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121020222032 = 2423372788237
BaseRepresentation
bin111000010110101011…
…1100000101001010000
3102120101002220021000122
41300231113200221100
53440322134101112
6131332415205412
711512664625443
oct1605527405120
9376332807018
10121020222032
1147362840026
121b555516868
13b548684a48
145c00a3965a
15323482d872
hex1c2d5e0a50

121020222032 has 40 divisors (see below), whose sum is σ = 244739740416. Its totient is φ = 57863051136.

The previous prime is 121020222031. The next prime is 121020222077. The reversal of 121020222032 is 230222020121.

It is a self number, because there is not a number n which added to its sum of digits gives 121020222032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020222031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1327418 + ... + 1415654.

Almost surely, 2121020222032 is an apocalyptic number.

It is an amenable number.

121020222032 is an abundant number, since it is smaller than the sum of its proper divisors (123719518384).

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

121020222032 is a wasteful number, since it uses less digits than its factorization.

121020222032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91995 (or 91989 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 121020222032 its reverse (230222020121), we get a palindrome (351242242153).

The spelling of 121020222032 in words is "one hundred twenty-one billion, twenty million, two hundred twenty-two thousand, thirty-two".

Divisors: 1 2 4 8 16 23 46 92 184 368 3727 7454 14908 29816 59632 85721 88237 171442 176474 342884 352948 685768 705896 1371536 1411792 2029451 4058902 8117804 16235608 32471216 328859299 657718598 1315437196 2630874392 5261748784 7563763877 15127527754 30255055508 60510111016 121020222032