30221100033221 has 4 divisors (see below), whose sum is σ = 30222406575744. Its totient is φ = 30219793490700.

The previous prime is 30221100033209. The next prime is 30221100033281. The reversal of 30221100033221 is 12233000112203.

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 30221100033221 - 2¹⁴ = 30221100016837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30221100033193 and 30221100033202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221100033281) 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, 653236565 + ... + 653282826.

It is an arithmetic number, because the mean of its divisors is an integer number (7555601643936).

Almost surely, 2^{30221100033221} is an apocalyptic number.

It is an amenable number.

30221100033221 is a deficient number, since it is larger than the sum of its proper divisors (1306542523).

30221100033221 is a wasteful number, since it uses less digits than its factorization.

30221100033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306542522.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30221100033221 its reverse (12233000112203), we get a palindrome (42454100145424).

The spelling of 30221100033221 in words is "thirty trillion, two hundred twenty-one billion, one hundred million, thirty-three thousand, two hundred twenty-one".