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12210022210 = 257649159629
BaseRepresentation
bin10110101111100011…
…00010011101000010
31011111221022101122211
423113301202131002
5200001231202320
65335331052334
7611401322251
oct132761423502
934457271584
1012210022210
1151a626a451
1224491410aa
1311c781a819
1483b88c798
154b6e0955a
hex2d7c62742

12210022210 has 16 divisors (see below), whose sum is σ = 21981051000. Its totient is φ = 4883339776.

The previous prime is 12210022177. The next prime is 12210022241. The reversal of 12210022210 is 1222001221.

It is a happy number.

12210022210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9937497969 + 2272524241 = 99687^2 + 47671^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3325 + ... + 156304.

Almost surely, 212210022210 is an apocalyptic number.

12210022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12210022210 is a deficient number, since it is larger than the sum of its proper divisors (9771028790).

12210022210 is a wasteful number, since it uses less digits than its factorization.

12210022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167285.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12210022210 its reverse (1222001221), we get a palindrome (13432023431).

The spelling of 12210022210 in words is "twelve billion, two hundred ten million, twenty-two thousand, two hundred ten".

Divisors: 1 2 5 10 7649 15298 38245 76490 159629 319258 798145 1596290 1221002221 2442004442 6105011105 12210022210