30411221 has 4 divisors (see below), whose sum is σ = 31733472. Its totient is φ = 29088972.

The previous prime is 30411197. The next prime is 30411247. The reversal of 30411221 is 12211403.

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.

It is a cyclic number.

It is not a de Polignac number, because 30411221 - 2¹⁰ = 30410197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30411196 and 30411205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30411421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661091 + ... + 661136.

It is an arithmetic number, because the mean of its divisors is an integer number (7933368).

Almost surely, 2^30411221 is an apocalyptic number.

It is an amenable number.

30411221 is a deficient number, since it is larger than the sum of its proper divisors (1322251).

30411221 is a wasteful number, since it uses less digits than its factorization.

30411221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322250.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 30411221 is about 5514.6369780793. The cubic root of 30411221 is about 312.1365451257.

Adding to 30411221 its reverse (12211403), we get a palindrome (42622624).

The spelling of 30411221 in words is "thirty million, four hundred eleven thousand, two hundred twenty-one".