30103220112221 has 4 divisors (see below), whose sum is σ = 30103231653792. Its totient is φ = 30103208570652.

The previous prime is 30103220112167. The next prime is 30103220112223. The reversal of 30103220112221 is 12221102230103.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30103220112221 - 2²² = 30103215917917 is a prime.

It is a super-2 number, since 2×30103220112221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30103220112193 and 30103220112202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30103220112223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202640 + ... + 7761926.

It is an arithmetic number, because the mean of its divisors is an integer number (7525807913448).

Almost surely, 2^{30103220112221} is an apocalyptic number.

It is an amenable number.

30103220112221 is a deficient number, since it is larger than the sum of its proper divisors (11541571).

30103220112221 is an equidigital number, since it uses as much as digits as its factorization.

30103220112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11541570.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 30103220112221 its reverse (12221102230103), we get a palindrome (42324322342324).

The spelling of 30103220112221 in words is "thirty trillion, one hundred three billion, two hundred twenty million, one hundred twelve thousand, two hundred twenty-one".