124044346233221 has 4 divisors (see below), whose sum is σ = 131341072482252. Its totient is φ = 116747619984192.

The previous prime is 124044346233217. The next prime is 124044346233253. The reversal of 124044346233221 is 122332643440421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 116503204132225 + 7541142100996 = 10793665^2 + 2746114^2 .

It is a cyclic number.

It is not a de Polignac number, because 124044346233221 - 2² = 124044346233217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124044346230221) 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, 3648363124490 + ... + 3648363124523.

It is an arithmetic number, because the mean of its divisors is an integer number (32835268120563).

Almost surely, 2^{124044346233221} is an apocalyptic number.

It is an amenable number.

124044346233221 is a deficient number, since it is larger than the sum of its proper divisors (7296726249031).

124044346233221 is an equidigital number, since it uses as much as digits as its factorization.

124044346233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7296726249030.

The product of its (nonzero) digits is 663552, while the sum is 41.

Adding to 124044346233221 its reverse (122332643440421), we get a palindrome (246376989673642).

The spelling of 124044346233221 in words is "one hundred twenty-four trillion, forty-four billion, three hundred forty-six million, two hundred thirty-three thousand, two hundred twenty-one".