10003120221 has 8 divisors (see below), whose sum is σ = 13341779584. Its totient is φ = 6666603840.

The previous prime is 10003120213. The next prime is 10003120223. The reversal of 10003120221 is 12202130001.

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

It is not a de Polignac number, because 10003120221 - 2³ = 10003120213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10003120197 and 10003120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10003120223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524821 + ... + 543546.

It is an arithmetic number, because the mean of its divisors is an integer number (1667722448).

Almost surely, 2^10003120221 is an apocalyptic number.

It is an amenable number.

10003120221 is a deficient number, since it is larger than the sum of its proper divisors (3338659363).

10003120221 is a wasteful number, since it uses less digits than its factorization.

10003120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071491.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10003120221 its reverse (12202130001), we get a palindrome (22205250222).

The spelling of 10003120221 in words is "ten billion, three million, one hundred twenty thousand, two hundred twenty-one".