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211200010121 = 311760789273
BaseRepresentation
bin1100010010110010000…
…0000110011110001001
3202012010220002011001002
43010230200012132021
511430014200310441
6241005101104345
721154506315512
oct3045440063611
9665126064032
10211200010121
1181629999611
1234b225580b5
1316bba8055b9
14a317777a09
155761870b9b
hex312c806789

211200010121 has 8 divisors (see below), whose sum is σ = 211909336704. Its totient is φ = 210490877920.

The previous prime is 211200010003. The next prime is 211200010163. The reversal of 211200010121 is 121010002112.

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

It is a cyclic number.

It is not a de Polignac number, because 211200010121 - 214 = 211199993737 is a prime.

It is a super-2 number, since 2×2112000101212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211200010621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2321141 + ... + 2410413.

It is an arithmetic number, because the mean of its divisors is an integer number (26488667088).

Almost surely, 2211200010121 is an apocalyptic number.

It is an amenable number.

211200010121 is a deficient number, since it is larger than the sum of its proper divisors (709326583).

211200010121 is an equidigital number, since it uses as much as digits as its factorization.

211200010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97191.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211200010121 its reverse (121010002112), we get a palindrome (332210012233).

The spelling of 211200010121 in words is "two hundred eleven billion, two hundred million, ten thousand, one hundred twenty-one".

Divisors: 1 311 7607 89273 2365777 27763903 679099711 211200010121