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2112202112210 = 252417277731469
BaseRepresentation
bin11110101111001001000…
…011100111110011010010
321110220221222220201101122
4132233021003213303102
5234101242220042320
64254155433402242
7305413223502521
oct36571103476322
97426858821348
102112202112210
11744864033443
122a1438269382
13124245052148
14743343004b8
1539e235acd25
hex1ebc90e7cd2

2112202112210 has 32 divisors (see below), whose sum is σ = 3805027377840. Its totient is φ = 844200343552.

The previous prime is 2112202112203. The next prime is 2112202112219. The reversal of 2112202112210 is 122112022112.

It can be written as a sum of positive squares in 8 ways, for example, as 1134866220601 + 977335891609 = 1065301^2 + 988603^2 .

It is a super-2 number, since 2×21122021122102 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112202112219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67104356 + ... + 67135824.

Almost surely, 22112202112210 is an apocalyptic number.

2112202112210 is a deficient number, since it is larger than the sum of its proper divisors (1692825265630).

2112202112210 is a wasteful number, since it uses less digits than its factorization.

2112202112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36670.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2112202112210 its reverse (122112022112), we get a palindrome (2234314134322).

The spelling of 2112202112210 in words is "two trillion, one hundred twelve billion, two hundred two million, one hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 2417 2777 4834 5554 12085 13885 24170 27770 31469 62938 157345 314690 6712009 13424018 33560045 67120090 76060573 87389413 152121146 174778826 380302865 436947065 760605730 873894130 211220211221 422440422442 1056101056105 2112202112210