11212130101 has 4 divisors (see below), whose sum is σ = 11212398604. Its totient is φ = 11211861600.

The previous prime is 11212130029. The next prime is 11212130107. The reversal of 11212130101 is 10103121211.

It is a happy number.

11212130101 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: 10103121211 = 57223 ⋅176557.

It can be written as a sum of positive squares in 2 ways, for example, as 3049911076 + 8162219025 = 55226^2 + 90345^2 .

It is a cyclic number.

It is not a de Polignac number, because 11212130101 - 2²¹ = 11210032949 is a prime.

It is a super-2 number, since 2×11212130101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212130107) 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, 56670 + ... + 160111.

It is an arithmetic number, because the mean of its divisors is an integer number (2803099651).

Almost surely, 2^11212130101 is an apocalyptic number.

It is an amenable number.

11212130101 is a deficient number, since it is larger than the sum of its proper divisors (268503).

11212130101 is an equidigital number, since it uses as much as digits as its factorization.

11212130101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268502.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11212130101 its reverse (10103121211), we get a palindrome (21315251312).

The spelling of 11212130101 in words is "eleven billion, two hundred twelve million, one hundred thirty thousand, one hundred one".