12141222021 has 12 divisors (see below), whose sum is σ = 17541749472. Its totient is φ = 8092103976.

The previous prime is 12141222011. The next prime is 12141222089. The reversal of 12141222021 is 12022214121.

12141222021 is a `hidden beast` number, since 12 + 1 + 412 + 220 + 21 = 666.

It is not a de Polignac number, because 12141222021 - 2²⁷ = 12007004293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12141221985 and 12141222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12141222011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132271 + ... + 204396.

It is an arithmetic number, because the mean of its divisors is an integer number (1461812456).

Almost surely, 2^12141222021 is an apocalyptic number.

It is an amenable number.

12141222021 is a deficient number, since it is larger than the sum of its proper divisors (5400527451).

12141222021 is a wasteful number, since it uses less digits than its factorization.

12141222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340680 (or 340677 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12141222021 its reverse (12022214121), we get a palindrome (24163436142).

The spelling of 12141222021 in words is "twelve billion, one hundred forty-one million, two hundred twenty-two thousand, twenty-one".