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12120202401 = 3311303100019
BaseRepresentation
bin10110100100110101…
…11001110010100001
31011021200022002001020
423102122321302201
5144310232434101
65322402000053
7606231010026
oct132232716241
934250262036
1012120202401
11515a5a14aa
122423046029
1311b202c8c8
1482d98b54d
154ae0b6136
hex2d26b9ca1

12120202401 has 16 divisors (see below), whose sum is σ = 16694538240. Its totient is φ = 7813406160.

The previous prime is 12120202373. The next prime is 12120202453. The reversal of 12120202401 is 10420202121.

12120202401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12120202401 - 210 = 12120201377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120202481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71170 + ... + 171188.

It is an arithmetic number, because the mean of its divisors is an integer number (1043408640).

Almost surely, 212120202401 is an apocalyptic number.

It is an amenable number.

12120202401 is a deficient number, since it is larger than the sum of its proper divisors (4574335839).

12120202401 is a wasteful number, since it uses less digits than its factorization.

12120202401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101356.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12120202401 its reverse (10420202121), we get a palindrome (22540404522).

The spelling of 12120202401 in words is "twelve billion, one hundred twenty million, two hundred two thousand, four hundred one".

Divisors: 1 3 31 93 1303 3909 40393 100019 121179 300057 3100589 9301767 130324757 390974271 4040067467 12120202401