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212001212210 = 2521200121221
BaseRepresentation
bin1100010101110001000…
…0011100011100110010
3202021012201200102200112
43011130100130130302
511433134302242320
6241220401421322
721213405366614
oct3053420343462
9667181612615
10212001212210
1181a001805a7
123510693a842
1316cb77b9688
14a391d36db4
1557abd83ec5
hex315c41c732

212001212210 has 8 divisors (see below), whose sum is σ = 381602181996. Its totient is φ = 84800484880.

The previous prime is 212001212201. The next prime is 212001212219. The reversal of 212001212210 is 12212100212.

It is an interprime number because it is at equal distance from previous prime (212001212201) and next prime (212001212219).

It can be written as a sum of positive squares in 2 ways, for example, as 207186101329 + 4815110881 = 455177^2 + 69391^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (212001212219) 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 3 ways as a sum of consecutive naturals, for example, 10600060601 + ... + 10600060620.

Almost surely, 2212001212210 is an apocalyptic number.

212001212210 is a deficient number, since it is larger than the sum of its proper divisors (169600969786).

212001212210 is a wasteful number, since it uses less digits than its factorization.

212001212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21200121228.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212001212210 its reverse (12212100212), we get a palindrome (224213312422).

The spelling of 212001212210 in words is "two hundred twelve billion, one million, two hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 21200121221 42400242442 106000606105 212001212210