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120200000221 = 722584794907
BaseRepresentation
bin110111111110001111…
…0100111001011011101
3102111020221111200020001
41233330132213023131
53432132200001341
6131115155054301
711453445100300
oct1577436471335
9374227450201
10120200000221
1146a81848264
121b3668a1391
13b4477717b2
145b63b28b37
1531d780ed31
hex1bfc7a72dd

120200000221 has 12 divisors (see below), whose sum is σ = 139831373088. Its totient is φ = 103023499992.

The previous prime is 120200000203. The next prime is 120200000231. The reversal of 120200000221 is 122000002021.

It is not a de Polignac number, because 120200000221 - 221 = 120197903069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120200000198 and 120200000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120200000231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1219050 + ... + 1313956.

It is an arithmetic number, because the mean of its divisors is an integer number (11652614424).

Almost surely, 2120200000221 is an apocalyptic number.

It is an amenable number.

120200000221 is a deficient number, since it is larger than the sum of its proper divisors (19631372867).

120200000221 is an equidigital number, since it uses as much as digits as its factorization.

120200000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120768 (or 120761 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 120200000221 its reverse (122000002021), we get a palindrome (242200002242).

The spelling of 120200000221 in words is "one hundred twenty billion, two hundred million, two hundred twenty-one", and thus it is an aban number.

Divisors: 1 7 49 25847 94907 180929 664349 1266503 4650443 2453061229 17171428603 120200000221