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212021200001 = 13148911095247
BaseRepresentation
bin1100010101110101110…
…0101100010010000001
3202021021010021220210002
43011131130230102001
511433204411400001
6241222354045345
721214040315222
oct3053534542201
9667233256702
10212021200001
1181a10492736
1235111579855
1316cbb997380
14a39485b249
1557ad9d146b
hex315d72c481

212021200001 has 8 divisors (see below), whose sum is σ = 228346065024. Its totient is φ = 195698555280.

The previous prime is 212021199979. The next prime is 212021200031. The reversal of 212021200001 is 100002120212.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212021200001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021200031) 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 7 ways as a sum of consecutive naturals, for example, 354041 + ... + 741206.

It is an arithmetic number, because the mean of its divisors is an integer number (28543258128).

Almost surely, 2212021200001 is an apocalyptic number.

It is an amenable number.

212021200001 is a deficient number, since it is larger than the sum of its proper divisors (16324865023).

212021200001 is a wasteful number, since it uses less digits than its factorization.

212021200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110151.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 212021200001 its reverse (100002120212), we get a palindrome (312023320213).

The spelling of 212021200001 in words is "two hundred twelve billion, twenty-one million, two hundred thousand, one".

Divisors: 1 13 14891 193583 1095247 14238211 16309323077 212021200001