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12020222201 = 131019154777
BaseRepresentation
bin10110011000111011…
…00000100011111001
31011000201011112222212
423030131200203321
5144104134102301
65304431024505
7603605126411
oct131435404371
934021145885
1012020222201
115109113939
1223b566b135
1311973c5120
148205a3641
154a54174bb
hex2cc7608f9

12020222201 has 8 divisors (see below), whose sum is σ = 13073022984. Its totient is φ = 10985731200.

The previous prime is 12020222173. The next prime is 12020222219. The reversal of 12020222201 is 10222202021.

12020222201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6781357801 + 5238864400 = 82349^2 + 72380^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12020222201 is a prime.

It is a super-2 number, since 2×120202222012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12020228201) 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 7 ways as a sum of consecutive naturals, for example, 4576076 + ... + 4578701.

It is an arithmetic number, because the mean of its divisors is an integer number (1634127873).

Almost surely, 212020222201 is an apocalyptic number.

It is an amenable number.

12020222201 is a deficient number, since it is larger than the sum of its proper divisors (1052800783).

12020222201 is a wasteful number, since it uses less digits than its factorization.

12020222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9154891.

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

Adding to 12020222201 its reverse (10222202021), we get a palindrome (22242424222).

The spelling of 12020222201 in words is "twelve billion, twenty million, two hundred twenty-two thousand, two hundred one".

Divisors: 1 13 101 1313 9154777 119012101 924632477 12020222201