12221031241 has 4 divisors (see below), whose sum is σ = 12250198800. Its totient is φ = 12191863684.

The previous prime is 12221031239. The next prime is 12221031269. The reversal of 12221031241 is 14213012221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14213012221 = 38119 ⋅372859.

It is a cyclic number.

It is not a de Polignac number, because 12221031241 - 2¹ = 12221031239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221031541) 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, 14583151 + ... + 14583988.

It is an arithmetic number, because the mean of its divisors is an integer number (3062549700).

Almost surely, 2^12221031241 is an apocalyptic number.

It is an amenable number.

12221031241 is a deficient number, since it is larger than the sum of its proper divisors (29167559).

12221031241 is an equidigital number, since it uses as much as digits as its factorization.

12221031241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29167558.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12221031241 its reverse (14213012221), we get a palindrome (26434043462).

The spelling of 12221031241 in words is "twelve billion, two hundred twenty-one million, thirty-one thousand, two hundred forty-one".