12010212101 has 2 divisors, whose sum is σ = 12010212102. Its totient is φ = 12010212100.

The previous prime is 12010212083. The next prime is 12010212121. The reversal of 12010212101 is 10121201021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7018083076 + 4992129025 = 83774^2 + 70655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12010212101 is a prime.

It is a super-2 number, since 2×12010212101² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12010212121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005106050 + 6005106051.

It is an arithmetic number, because the mean of its divisors is an integer number (6005106051).

Almost surely, 2^12010212101 is an apocalyptic number.

It is an amenable number.

12010212101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12010212101 is an equidigital number, since it uses as much as digits as its factorization.

12010212101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12010212101 its reverse (10121201021), we get a palindrome (22131413122).

The spelling of 12010212101 in words is "twelve billion, ten million, two hundred twelve thousand, one hundred one".