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212200010101 = 217681974821
BaseRepresentation
bin1100010110100000011…
…0110011000101110101
3202021201120202102010101
43011220012303011311
511434041200310401
6241252222354101
721221341216402
oct3055006630565
9667646672111
10212200010101
1181aa2412382
123516142b931
1317019a42771
14a3b04c52a9
1557be552101
hex31681b3175

212200010101 has 4 divisors (see below), whose sum is σ = 212201202604. Its totient is φ = 212198817600.

The previous prime is 212200010053. The next prime is 212200010137. The reversal of 212200010101 is 101010002212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 82420668100 + 129779342001 = 287090^2 + 360249^2 .

It is a cyclic number.

It is not a de Polignac number, because 212200010101 - 29 = 212200009589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212200010161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269730 + ... + 705091.

It is an arithmetic number, because the mean of its divisors is an integer number (53050300651).

Almost surely, 2212200010101 is an apocalyptic number.

It is an amenable number.

212200010101 is a deficient number, since it is larger than the sum of its proper divisors (1192503).

212200010101 is an equidigital number, since it uses as much as digits as its factorization.

212200010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192502.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 212200010101 its reverse (101010002212), we get a palindrome (313210012313).

The spelling of 212200010101 in words is "two hundred twelve billion, two hundred million, ten thousand, one hundred one".

Divisors: 1 217681 974821 212200010101