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20210222001200 = 245271119233148437
BaseRepresentation
bin1001001100001100011110…
…00110100110110000110000
32122120002010010020122200012
410212012033012212300300
510122111013313014300
6110552240421114052
74154066066400440
oct446061706466060
978502103218605
1020210222001200
11649211a493010
122324a62558928
13b37a7b2ab91a
144dc273b70120
15250aaa91b435
hex12618f1a6c30

20210222001200 has 960 divisors, whose sum is σ = 68639172526080. Its totient is φ = 5524028928000.

The previous prime is 20210222001199. The next prime is 20210222001227. The reversal of 20210222001200 is 210022201202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 417223382 + ... + 417271818.

It is an arithmetic number, because the mean of its divisors is an integer number (71499138048).

Almost surely, 220210222001200 is an apocalyptic number.

20210222001200 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 20210222001200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34319586263040).

20210222001200 is an abundant number, since it is smaller than the sum of its proper divisors (48428950524880).

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

20210222001200 is a wasteful number, since it uses less digits than its factorization.

20210222001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48546 (or 48535 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20210222001200 its reverse (210022201202), we get a palindrome (20420244202402).

The spelling of 20210222001200 in words is "twenty trillion, two hundred ten billion, two hundred twenty-two million, one thousand, two hundred".