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120121201201 = 4382313012609
BaseRepresentation
bin110111111011111001…
…0000001001000110001
3102111001110020021021211
41233313302001020301
53432002011414301
6131103302120121
711451500235451
oct1576762011061
9374043207254
10120121201201
1146a41317401
121b344420041
13b434341c61
145b57495d61
1531d0947051
hex1bf7c81231

120121201201 has 16 divisors (see below), whose sum is σ = 123205864320. Its totient is φ = 117050169600.

The previous prime is 120121201141. The next prime is 120121201231. The reversal of 120121201201 is 102102121021.

It is a cyclic number.

It is not a de Polignac number, because 120121201201 - 211 = 120121199153 is a prime.

It is a super-2 number, since 2×1201212012012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120121201231) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 46039785 + ... + 46042393.

It is an arithmetic number, because the mean of its divisors is an integer number (7700366520).

Almost surely, 2120121201201 is an apocalyptic number.

It is an amenable number.

120121201201 is a deficient number, since it is larger than the sum of its proper divisors (3084663119).

120121201201 is a wasteful number, since it uses less digits than its factorization.

120121201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120121201201 its reverse (102102121021), we get a palindrome (222223322222).

The spelling of 120121201201 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred one thousand, two hundred one".

Divisors: 1 43 823 1301 2609 35389 55943 112187 1070723 2147207 3394309 46041089 92329901 145955287 2793516307 120121201201