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212202112210 = 25112138390217
BaseRepresentation
bin1100010110100000111…
…0110100010011010010
3202021201201201012200021
43011220032310103102
511434042220042320
6241252335414054
721221365123114
oct3055016642322
9667651635607
10212202112210
1181aa3618760
123516208432a
131701a2ca50a
14a3b08b13b4
1557be819daa
hex31683b44d2

212202112210 has 32 divisors (see below), whose sum is σ = 416711889792. Its totient is φ = 77159940480.

The previous prime is 212202112169. The next prime is 212202112219. The reversal of 212202112210 is 12211202212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212202112219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2307022 + ... + 2397238.

It is an arithmetic number, because the mean of its divisors is an integer number (13022246556).

Almost surely, 2212202112210 is an apocalyptic number.

212202112210 is a deficient number, since it is larger than the sum of its proper divisors (204509777582).

212202112210 is a wasteful number, since it uses less digits than its factorization.

212202112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111618.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212202112210 its reverse (12211202212), we get a palindrome (224413314422).

The spelling of 212202112210 in words is "two hundred twelve billion, two hundred two million, one hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 11 22 55 110 21383 42766 90217 106915 180434 213830 235213 451085 470426 902170 992387 1176065 1984774 2352130 4961935 9923870 1929110111 3858220222 9645550555 19291101110 21220211221 42440422442 106101056105 212202112210