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211210220201 = 1911116327379
BaseRepresentation
bin1100010010110100011…
…1000011001010101001
3202012011121021212122012
43010231013003022221
511430024304021301
6241010104005305
721154662151511
oct3045507031251
9665147255565
10211210220201
11816347325a2
1234b25a60835
1316bbc96b976
14a318c74841
1557626daebb
hex312d1c32a9

211210220201 has 4 divisors (see below), whose sum is σ = 222326547600. Its totient is φ = 200093892804.

The previous prime is 211210220171. The next prime is 211210220233. The reversal of 211210220201 is 102022012112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 211210220201 - 222 = 211206025897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211210220261) 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, 5558163671 + ... + 5558163708.

It is an arithmetic number, because the mean of its divisors is an integer number (55581636900).

Almost surely, 2211210220201 is an apocalyptic number.

It is an amenable number.

211210220201 is a deficient number, since it is larger than the sum of its proper divisors (11116327399).

211210220201 is a wasteful number, since it uses less digits than its factorization.

211210220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11116327398.

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

Adding to 211210220201 its reverse (102022012112), we get a palindrome (313232232313).

The spelling of 211210220201 in words is "two hundred eleven billion, two hundred ten million, two hundred twenty thousand, two hundred one".

Divisors: 1 19 11116327379 211210220201