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212203020012 = 22317683585001
BaseRepresentation
bin1100010110100001001…
…0010001111011101100
3202021201210102022221120
43011220102101323230
511434042433120022
6241252411100540
721221405623554
oct3055022217354
9667653368846
10212203020012
1181aa4088805
1235162441750
131701a557789
14a3b0a6a164
1557be948d5c
hex3168491eec

212203020012 has 12 divisors (see below), whose sum is σ = 495140380056. Its totient is φ = 70734340000.

The previous prime is 212203019999. The next prime is 212203020017. The reversal of 212203020012 is 210020302212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 212203019973 and 212203020000.

It is not an unprimeable number, because it can be changed into a prime (212203020017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8841792489 + ... + 8841792512.

It is an arithmetic number, because the mean of its divisors is an integer number (41261698338).

Almost surely, 2212203020012 is an apocalyptic number.

It is an amenable number.

212203020012 is an abundant number, since it is smaller than the sum of its proper divisors (282937360044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212203020012 is a wasteful number, since it uses less digits than its factorization.

212203020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17683585008 (or 17683585006 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 212203020012 its reverse (210020302212), we get a palindrome (422223322224).

The spelling of 212203020012 in words is "two hundred twelve billion, two hundred three million, twenty thousand, twelve".

Divisors: 1 2 3 4 6 12 17683585001 35367170002 53050755003 70734340004 106101510006 212203020012