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212020221201 = 32321313472939
BaseRepresentation
bin1100010101110101100…
…0111101010100010001
3202021021001110012010020
43011131120331110101
511433204134034301
6241222321054053
721214026100455
oct3053530752421
9667231405106
10212020221201
1181a0a984308
1235111187329
1316cbb7139b9
14a394684665
1557ad88b436
hex315d63d511

212020221201 has 48 divisors (see below), whose sum is σ = 298734670080. Its totient is φ = 133737054880.

The previous prime is 212020221173. The next prime is 212020221227. The reversal of 212020221201 is 102122020212.

212020221201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212020221201 - 25 = 212020221169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212020221401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72138790 + ... + 72141728.

It is an arithmetic number, because the mean of its divisors is an integer number (6223638960).

Almost surely, 2212020221201 is an apocalyptic number.

It is an amenable number.

212020221201 is a deficient number, since it is larger than the sum of its proper divisors (86714448879).

212020221201 is a wasteful number, since it uses less digits than its factorization.

212020221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466 (or 3443 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212020221201 its reverse (102122020212), we get a palindrome (314142241413).

The spelling of 212020221201 in words is "two hundred twelve billion, twenty million, two hundred twenty-one thousand, two hundred one".

Divisors: 1 3 23 69 131 347 393 529 1041 1587 2939 3013 7981 8817 9039 23943 45457 67597 69299 136371 183563 202791 207897 385009 550689 1019833 1045511 1155027 1554731 3059499 3136533 4664193 8855207 23456159 24046753 26565621 70368477 72140259 133598123 203669761 400794369 539491657 611009283 1618474971 3072756829 9218270487 70673407067 212020221201