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212122131332 = 22271195684623
BaseRepresentation
bin1100010110001101110…
…1101101101110000100
3202021112011012202112112
43011203131231232010
511433411231200312
6241240401240152
721216404236526
oct3054335555604
9667464182475
10212122131332
1181a6245a961
123513b333058
1317006875a57
14a3a4011a16
1557b77bbd22
hex316376db84

212122131332 has 12 divisors (see below), whose sum is σ = 372583524096. Its totient is φ = 105669695880.

The previous prime is 212122131317. The next prime is 212122131359. The reversal of 212122131332 is 233131221212.

It is a junction number, because it is equal to n+sod(n) for n = 212122131298 and 212122131307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97841228 + ... + 97843395.

It is an arithmetic number, because the mean of its divisors is an integer number (31048627008).

Almost surely, 2212122131332 is an apocalyptic number.

It is an amenable number.

212122131332 is a deficient number, since it is larger than the sum of its proper divisors (160461392764).

212122131332 is a wasteful number, since it uses less digits than its factorization.

212122131332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195684898 (or 195684896 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 212122131332 its reverse (233131221212), we get a palindrome (445253352544).

The spelling of 212122131332 in words is "two hundred twelve billion, one hundred twenty-two million, one hundred thirty-one thousand, three hundred thirty-two".

Divisors: 1 2 4 271 542 1084 195684623 391369246 782738492 53030532833 106061065666 212122131332