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211221201032 = 23281439214031
BaseRepresentation
bin1100010010110111000…
…0111100000010001000
3202012012100221202111122
43010231300330002020
511430040111413112
6241011135214412
721155154404552
oct3045560740210
9665170852448
10211221201032
118163a952666
1234b29677408
1316bc2014aba
14a31a4d24d2
155763659872
hex312dc3c088

211221201032 has 32 divisors (see below), whose sum is σ = 398356358400. Its totient is φ = 104994556800.

The previous prime is 211221200977. The next prime is 211221201041. The reversal of 211221201032 is 230102122112.

It is a super-2 number, since 2×2112212010322 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211221201032.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879857 + ... + 1093887.

It is an arithmetic number, because the mean of its divisors is an integer number (12448636200).

Almost surely, 2211221201032 is an apocalyptic number.

It is an amenable number.

211221201032 is a deficient number, since it is larger than the sum of its proper divisors (187135157368).

211221201032 is a wasteful number, since it uses less digits than its factorization.

211221201032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214757 (or 214753 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 211221201032 its reverse (230102122112), we get a palindrome (441323323144).

The spelling of 211221201032 in words is "two hundred eleven billion, two hundred twenty-one million, two hundred one thousand, thirty-two".

Divisors: 1 2 4 8 281 439 562 878 1124 1756 2248 3512 123359 214031 246718 428062 493436 856124 986872 1712248 60142711 93959609 120285422 187919218 240570844 375838436 481141688 751676872 26402650129 52805300258 105610600516 211221201032