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212201313331 = 7143921066347
BaseRepresentation
bin1100010110100000101…
…1110001010000110011
3202021201200012121211011
43011220023301100303
511434042014011311
6241252310331351
721221355255040
oct3055013612063
9667650177734
10212201313331
1181aa3122527
1235161959b57
131701a0aa9c7
14a3b07441c7
1557be70d321
hex31682f1433

212201313331 has 8 divisors (see below), whose sum is σ = 242684328960. Its totient is φ = 181760433288.

The previous prime is 212201313329. The next prime is 212201313409. The reversal of 212201313331 is 133313102212.

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

It is not a de Polignac number, because 212201313331 - 21 = 212201313329 is a prime.

It is a super-2 number, since 2×2122013133312 (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 (212201313131) 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, 10523101 + ... + 10543246.

It is an arithmetic number, because the mean of its divisors is an integer number (30335541120).

Almost surely, 2212201313331 is an apocalyptic number.

212201313331 is a deficient number, since it is larger than the sum of its proper divisors (30483015629).

212201313331 is a wasteful number, since it uses less digits than its factorization.

212201313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21067793.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 212201313331 its reverse (133313102212), we get a palindrome (345514415543).

The spelling of 212201313331 in words is "two hundred twelve billion, two hundred one million, three hundred thirteen thousand, three hundred thirty-one".

Divisors: 1 7 1439 10073 21066347 147464429 30314473333 212201313331