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1210111201 = 13160957853
BaseRepresentation
bin100100000100000…
…1101010011100001
310010100001000111101
41020020031103201
54434242024301
6320024514401
741662526665
oct11010152341
93110030441
101210111201
11571092502
1229931ba01
13163924840
14b6a028a5
1571386701
hex4820d4e1

1210111201 has 8 divisors (see below), whose sum is σ = 1304029160. Its totient is φ = 1116312192.

The previous prime is 1210111193. The next prime is 1210111247. The reversal of 1210111201 is 1021110121.

It can be written as a sum of positive squares in 4 ways, for example, as 103550976 + 1106560225 = 10176^2 + 33265^2 .

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 1210111201 - 23 = 1210111193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210111271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8010 + ... + 49843.

It is an arithmetic number, because the mean of its divisors is an integer number (163003645).

Almost surely, 21210111201 is an apocalyptic number.

It is an amenable number.

1210111201 is a deficient number, since it is larger than the sum of its proper divisors (93917959).

1210111201 is a wasteful number, since it uses less digits than its factorization.

1210111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59475.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1210111201 is about 34786.6526271212. The cubic root of 1210111201 is about 1065.6348793023.

Adding to 1210111201 its reverse (1021110121), we get a palindrome (2231221322).

The spelling of 1210111201 in words is "one billion, two hundred ten million, one hundred eleven thousand, two hundred one".