12121410101 has 4 divisors (see below), whose sum is σ = 12320121804. Its totient is φ = 11922698400.

The previous prime is 12121410047. The next prime is 12121410139. The reversal of 12121410101 is 10101412121.

12121410101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10101412121 = 17 ⋅594200713.

It can be written as a sum of positive squares in 2 ways, for example, as 6123062500 + 5998347601 = 78250^2 + 77449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12121410101 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121410181) 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 3 ways as a sum of consecutive naturals, for example, 99355760 + ... + 99355881.

It is an arithmetic number, because the mean of its divisors is an integer number (3080030451).

Almost surely, 2^12121410101 is an apocalyptic number.

It is an amenable number.

12121410101 is a deficient number, since it is larger than the sum of its proper divisors (198711703).

12121410101 is an equidigital number, since it uses as much as digits as its factorization.

12121410101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198711702.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12121410101 its reverse (10101412121), we get a palindrome (22222822222).

The spelling of 12121410101 in words is "twelve billion, one hundred twenty-one million, four hundred ten thousand, one hundred one".