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201212122010 = 25197117187223
BaseRepresentation
bin1011101101100100101…
…1010101001110011010
3201020100211002212022012
42323121023111032122
511244040300401020
6232234030025522
720352136550264
oct2733113251632
9636324085265
10201212122010
1178373aa7429
1232bb56482a2
1315c88499033
149a4b088b34
155379aa67c5
hex2ed92d539a

201212122010 has 32 divisors (see below), whose sum is σ = 364335345792. Its totient is φ = 80006996160.

The previous prime is 201212121961. The next prime is 201212122019. The reversal of 201212122010 is 10221212102.

It is not an unprimeable number, because it can be changed into a prime (201212122019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2263259 + ... + 2350481.

It is an arithmetic number, because the mean of its divisors is an integer number (11385479556).

Almost surely, 2201212122010 is an apocalyptic number.

201212122010 is a deficient number, since it is larger than the sum of its proper divisors (163123223782).

201212122010 is a wasteful number, since it uses less digits than its factorization.

201212122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88598.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201212122010 its reverse (10221212102), we get a palindrome (211433334112).

The spelling of 201212122010 in words is "two hundred one billion, two hundred twelve million, one hundred twenty-two thousand, ten".

Divisors: 1 2 5 10 197 394 985 1171 1970 2342 5855 11710 87223 174446 230687 436115 461374 872230 1153435 2306870 17182931 34365862 85914655 102138133 171829310 204276266 510690665 1021381330 20121212201 40242424402 100606061005 201212122010