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201120221212 = 22237176940039
BaseRepresentation
bin1011101101001110110…
…0110000100000011100
3201020010102011211002221
42323103230300200130
511243343234034322
6232220544155124
720346642450031
oct2732354604034
9636112154087
10201120221212
1178327137a59
1232b8a908aa4
1315c7242cb71
149a3cba5388
1553719a19c7
hex2ed3b3081c

201120221212 has 48 divisors (see below), whose sum is σ = 372929356800. Its totient is φ = 94707486720.

The previous prime is 201120221207. The next prime is 201120221213. The reversal of 201120221212 is 212122021102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201120221213) 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, 5003089 + ... + 5043127.

It is an arithmetic number, because the mean of its divisors is an integer number (7769361600).

Almost surely, 2201120221212 is an apocalyptic number.

It is an amenable number.

201120221212 is a deficient number, since it is larger than the sum of its proper divisors (171809135588).

201120221212 is a wasteful number, since it uses less digits than its factorization.

201120221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40906 (or 40904 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201120221212 its reverse (212122021102), we get a palindrome (413242242314).

The spelling of 201120221212 in words is "two hundred one billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 23 46 71 92 142 284 769 1538 1633 3076 3266 6532 17687 35374 40039 54599 70748 80078 109198 160156 218396 920897 1255777 1841794 2511554 2842769 3683588 5023108 5685538 11371076 30789991 61579982 65383687 123159964 130767374 261534748 708169793 1416339586 2186089361 2832679172 4372178722 8744357444 50280055303 100560110606 201120221212