221030103121 has 8 divisors (see below), whose sum is σ = 224558736480. Its totient is φ = 217508225088.

The previous prime is 221030103113. The next prime is 221030103167. The reversal of 221030103121 is 121301030122.

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

It is a cyclic number.

It is not a de Polignac number, because 221030103121 - 2³ = 221030103113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221030103095 and 221030103104.

It is not an unprimeable number, because it can be changed into a prime (221030103101) 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, 1622851 + ... + 1753768.

It is an arithmetic number, because the mean of its divisors is an integer number (28069842060).

Almost surely, 2^221030103121 is an apocalyptic number.

It is an amenable number.

221030103121 is a deficient number, since it is larger than the sum of its proper divisors (3528633359).

221030103121 is an equidigital number, since it uses as much as digits as its factorization.

221030103121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377663.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 221030103121 its reverse (121301030122), we get a palindrome (342331133243).

The spelling of 221030103121 in words is "two hundred twenty-one billion, thirty million, one hundred three thousand, one hundred twenty-one".