12141062221 has 4 divisors (see below), whose sum is σ = 12141953244. Its totient is φ = 12140171200.

The previous prime is 12141062207. The next prime is 12141062243. The reversal of 12141062221 is 12226014121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12226014121 = 61 ⋅200426461.

It can be written as a sum of positive squares in 2 ways, for example, as 5275116900 + 6865945321 = 72630^2 + 82861^2 .

It is a cyclic number.

It is not a de Polignac number, because 12141062221 - 2⁵ = 12141062189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12141062192 and 12141062201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12141062321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424750 + ... + 452431.

It is an arithmetic number, because the mean of its divisors is an integer number (3035488311).

Almost surely, 2^12141062221 is an apocalyptic number.

It is an amenable number.

12141062221 is a deficient number, since it is larger than the sum of its proper divisors (891023).

12141062221 is an equidigital number, since it uses as much as digits as its factorization.

12141062221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891022.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 12141062221 its reverse (12226014121), we get a palindrome (24367076342).

The spelling of 12141062221 in words is "twelve billion, one hundred forty-one million, sixty-two thousand, two hundred twenty-one".