10103201021221 has 24 divisors (see below), whose sum is σ = 12720274160832. Its totient is φ = 7854852720000.

The previous prime is 10103201021171. The next prime is 10103201021233. The reversal of 10103201021221 is 12212010230101.

It is not a de Polignac number, because 10103201021221 - 2⁷ = 10103201021093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10103201021195 and 10103201021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10103201022221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13087780 + ... + 13838221.

It is an arithmetic number, because the mean of its divisors is an integer number (530011423368).

Almost surely, 2^{10103201021221} is an apocalyptic number.

10103201021221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10103201021221 is a deficient number, since it is larger than the sum of its proper divisors (2617073139611).

10103201021221 is a wasteful number, since it uses less digits than its factorization.

10103201021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26926473 (or 26926462 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10103201021221 its reverse (12212010230101), we get a palindrome (22315211251322).

The spelling of 10103201021221 in words is "ten trillion, one hundred three billion, two hundred one million, twenty-one thousand, two hundred twenty-one".