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200120120221 = 766713428531
BaseRepresentation
bin1011101001100000010…
…1101011001110011101
3201010112201022102110111
42322120011223032131
511234321222321341
6231533420410021
720313106645510
oct2723005531635
9633481272414
10200120120221
117796365530a
123294b9a6911
1315b43188a28
14998602cd77
155313ca0681
hex2e9816b39d

200120120221 has 8 divisors (see below), whose sum is σ = 228712670784. Its totient is φ = 171528560160.

The previous prime is 200120120201. The next prime is 200120120339. The reversal of 200120120221 is 122021021002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200120120221 - 27 = 200120120093 is a prime.

It is a super-4 number, since 4×2001201202214 (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200120120201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252726 + ... + 681256.

It is an arithmetic number, because the mean of its divisors is an integer number (28589083848).

Almost surely, 2200120120221 is an apocalyptic number.

It is an amenable number.

200120120221 is a deficient number, since it is larger than the sum of its proper divisors (28592550563).

200120120221 is an equidigital number, since it uses as much as digits as its factorization.

200120120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495251.

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

Adding to 200120120221 its reverse (122021021002), we get a palindrome (322141141223).

The spelling of 200120120221 in words is "two hundred billion, one hundred twenty million, one hundred twenty thousand, two hundred twenty-one".

Divisors: 1 7 66713 428531 466991 2999717 28588588603 200120120221