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12012101 is a prime number
BaseRepresentation
bin101101110100…
…101001000101
3211121021111122
4231310221011
511033341401
61105243325
7204046463
oct55645105
924537448
1012012101
116864962
124033545
13264766a
141849833
1510c421b
hexb74a45

12012101 has 2 divisors, whose sum is σ = 12012102. Its totient is φ = 12012100.

The previous prime is 12012089. The next prime is 12012109. The reversal of 12012101 is 10121021.

12012101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (12012109) can be obtained adding 12012101 to its sum of digits (8).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11937025 + 75076 = 3455^2 + 274^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012101 - 26 = 12012037 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12012109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006050 + 6006051.

It is an arithmetic number, because the mean of its divisors is an integer number (6006051).

Almost surely, 212012101 is an apocalyptic number.

It is an amenable number.

12012101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012101 is an equidigital number, since it uses as much as digits as its factorization.

12012101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 12012101 is about 3465.8478039291. The cubic root of 12012101 is about 229.0197792518.

Adding to 12012101 its reverse (10121021), we get a palindrome (22133122).

It can be divided in two parts, 120 and 12101, that added together give a palindrome (12221).

The spelling of 12012101 in words is "twelve million, twelve thousand, one hundred one".