10124011221 has 4 divisors (see below), whose sum is σ = 13498681632. Its totient is φ = 6749340812.

The previous prime is 10124011169. The next prime is 10124011259. The reversal of 10124011221 is 12211042101.

10124011221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10124011221 - 2¹⁵ = 10123978453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10124011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10124012221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1687335201 + ... + 1687335206.

It is an arithmetic number, because the mean of its divisors is an integer number (3374670408).

Almost surely, 2^10124011221 is an apocalyptic number.

It is an amenable number.

10124011221 is a deficient number, since it is larger than the sum of its proper divisors (3374670411).

10124011221 is an equidigital number, since it uses as much as digits as its factorization.

10124011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374670410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10124011221 its reverse (12211042101), we get a palindrome (22335053322).

The spelling of 10124011221 in words is "ten billion, one hundred twenty-four million, eleven thousand, two hundred twenty-one".