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212201201200 = 2452172937127229
BaseRepresentation
bin1100010110100000101…
…1010101111000110000
3202021201122222221000011
43011220023111320300
511434042001414300
6241252304104304
721221354310112
oct3055013257060
9667648887004
10212201201200
1181aa305625a
1235161905094
131701a06b961
14a3b07153b2
1557be6d9eba
hex31682d5e30

212201201200 has 480 divisors, whose sum is σ = 580548556800. Its totient is φ = 74132029440.

The previous prime is 212201201189. The next prime is 212201201213. The reversal of 212201201200 is 2102102212.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 926642686 + ... + 926642914.

It is an arithmetic number, because the mean of its divisors is an integer number (1209476160).

Almost surely, 2212201201200 is an apocalyptic number.

212201201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212201201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290274278400).

212201201200 is an abundant number, since it is smaller than the sum of its proper divisors (368347355600).

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

212201201200 is a wasteful number, since it uses less digits than its factorization.

212201201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212201201200 its reverse (2102102212), we get a palindrome (214303303412).

The spelling of 212201201200 in words is "two hundred twelve billion, two hundred one million, two hundred one thousand, two hundred".