12220121344441 has 4 divisors (see below), whose sum is σ = 12220190236800. Its totient is φ = 12220052452084.

The previous prime is 12220121344429. The next prime is 12220121344451. The reversal of 12220121344441 is 14444312102221.

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.

It is a cyclic number.

It is not a de Polignac number, because 12220121344441 - 2⁷ = 12220121344313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220121344451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34179421 + ... + 34535098.

It is an arithmetic number, because the mean of its divisors is an integer number (3055047559200).

Almost surely, 2^{12220121344441} is an apocalyptic number.

It is an amenable number.

12220121344441 is a deficient number, since it is larger than the sum of its proper divisors (68892359).

12220121344441 is an equidigital number, since it uses as much as digits as its factorization.

12220121344441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68892358.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 12220121344441 its reverse (14444312102221), we get a palindrome (26664433446662).

The spelling of 12220121344441 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-one million, three hundred forty-four thousand, four hundred forty-one".