10103111221 has 8 divisors (see below), whose sum is σ = 11547024320. Its totient is φ = 8659351008.

The previous prime is 10103111219. The next prime is 10103111231. The reversal of 10103111221 is 12211130101.

It is a happy number.

10103111221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10103111221 - 2¹ = 10103111219 is a prime.

It is a super-2 number, since 2×10103111221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10103111201) 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 7 ways as a sum of consecutive naturals, for example, 217210 + ... + 259588.

It is an arithmetic number, because the mean of its divisors is an integer number (1443378040).

Almost surely, 2^10103111221 is an apocalyptic number.

It is an amenable number.

10103111221 is a deficient number, since it is larger than the sum of its proper divisors (1443913099).

10103111221 is an equidigital number, since it uses as much as digits as its factorization.

10103111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76443.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 10103111221 its reverse (12211130101), we get a palindrome (22314241322).

The spelling of 10103111221 in words is "ten billion, one hundred three million, one hundred eleven thousand, two hundred twenty-one".