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220212202120212 = 22323139241295497
BaseRepresentation
bin110010000100100000100110…
…000101010010010000010100
31001212201002011222211011212210
4302010200212011102100110
5212330424042220321322
62100204031123313420
764245543440525061
oct6204404605222024
91055632158734783
10220212202120212
116419151a1a4055
1220846724b1b870
1395b4bc9873953
143c54482755c68
151a6d35874270c
hexc84826152414

220212202120212 has 72 divisors (see below), whose sum is σ = 540053933380416. Its totient is φ = 69707457975936.

The previous prime is 220212202120153. The next prime is 220212202120237. The reversal of 220212202120212 is 212021202212022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15315153 + ... + 25980344.

It is an arithmetic number, because the mean of its divisors is an integer number (7500749074728).

Almost surely, 2220212202120212 is an apocalyptic number.

It is an amenable number.

220212202120212 is an abundant number, since it is smaller than the sum of its proper divisors (319841731260204).

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

220212202120212 is a wasteful number, since it uses less digits than its factorization.

220212202120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41295805 (or 41295664 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 220212202120212 its reverse (212021202212022), we get a palindrome (432233404332234).

The spelling of 220212202120212 in words is "two hundred twenty trillion, two hundred twelve billion, two hundred two million, one hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 139 276 278 417 556 834 1668 3197 6394 9591 12788 19182 19321 38364 38642 57963 77284 115926 231852 444383 888766 1333149 1777532 2666298 5332596 41295497 82590994 123886491 165181988 247772982 495545964 949796431 1899592862 2849389293 3799185724 5698778586 5740074083 11397557172 11480148166 17220222249 22960296332 34440444498 68880888996 132021703909 264043407818 396065111727 528086815636 792130223454 797870297537 1584260446908 1595740595074 2393610892611 3191481190148 4787221785222 9574443570444 18351016843351 36702033686702 55053050530053 73404067373404 110106101060106 220212202120212