12121224141 has 16 divisors (see below), whose sum is σ = 17477671680. Its totient is φ = 7427999040.

The previous prime is 12121224127. The next prime is 12121224169. The reversal of 12121224141 is 14142212121.

It is not a de Polignac number, because 12121224141 - 2³³ = 3531289549 is a prime.

It is a super-2 number, since 2×12121224141² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121224121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640890 + ... + 659531.

It is an arithmetic number, because the mean of its divisors is an integer number (1092354480).

Almost surely, 2^12121224141 is an apocalyptic number.

It is an amenable number.

12121224141 is a deficient number, since it is larger than the sum of its proper divisors (5356447539).

12121224141 is a wasteful number, since it uses less digits than its factorization.

12121224141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300676.

The product of its digits is 256, while the sum is 21.

Adding to 12121224141 its reverse (14142212121), we get a palindrome (26263436262).

The spelling of 12121224141 in words is "twelve billion, one hundred twenty-one million, two hundred twenty-four thousand, one hundred forty-one".