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201012110221200 = 243521791103848423
BaseRepresentation
bin101101101101000111000111…
…011011001101111110010000
3222100201120101120120110110120
4231231013013123031332100
5202321340300204034300
61551303404424030240
760224434323253065
oct5555070733157620
9870646346513416
10201012110221200
1159059836932713
121a6655b1002380
13882148c4a1185
14378d07657ac6c
151838bbda993a0
hexb6d1c76cdf90

201012110221200 has 240 divisors, whose sum is σ = 648093853624320. Its totient is φ = 53255381066240.

The previous prime is 201012110221129. The next prime is 201012110221217. The reversal of 201012110221200 is 2122011210102.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201012110221200.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 236500189 + ... + 237348611.

It is an arithmetic number, because the mean of its divisors is an integer number (2700391056768).

Almost surely, 2201012110221200 is an apocalyptic number.

201012110221200 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 201012110221200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324046926812160).

201012110221200 is an abundant number, since it is smaller than the sum of its proper divisors (447081743403120).

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

201012110221200 is a wasteful number, since it uses less digits than its factorization.

201012110221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849726 (or 849715 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201012110221200 its reverse (2122011210102), we get a palindrome (203134121431302).

The spelling of 201012110221200 in words is "two hundred one trillion, twelve billion, one hundred ten million, two hundred twenty-one thousand, two hundred".