124221243220201 has 4 divisors (see below), whose sum is σ = 128228380098304. Its totient is φ = 120214106342100.

The previous prime is 124221243220189. The next prime is 124221243220289. The reversal of 124221243220201 is 102022342122421.

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 124221243220201 - 2⁷ = 124221243220073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124221243220201.

It is not an unprimeable number, because it can be changed into a prime (124221243220901) 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, 2003568439005 + ... + 2003568439066.

It is an arithmetic number, because the mean of its divisors is an integer number (32057095024576).

Almost surely, 2^{124221243220201} is an apocalyptic number.

It is an amenable number.

124221243220201 is a deficient number, since it is larger than the sum of its proper divisors (4007136878103).

124221243220201 is an equidigital number, since it uses as much as digits as its factorization.

124221243220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007136878102.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 124221243220201 its reverse (102022342122421), we get a palindrome (226243585342622).

The spelling of 124221243220201 in words is "one hundred twenty-four trillion, two hundred twenty-one billion, two hundred forty-three million, two hundred twenty thousand, two hundred one".