30221221333 has 4 divisors (see below), whose sum is σ = 30291340608. Its totient is φ = 30151102060.

The previous prime is 30221221321. The next prime is 30221221337. The reversal of 30221221333 is 33312212203.

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 an emirpimes, since its reverse is a distinct semiprime: 33312212203 = 5167 ⋅6447109.

It is a cyclic number.

It is not a de Polignac number, because 30221221333 - 2¹⁷ = 30221090261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221221337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35058991 + ... + 35059852.

It is an arithmetic number, because the mean of its divisors is an integer number (7572835152).

Almost surely, 2^30221221333 is an apocalyptic number.

It is an amenable number.

30221221333 is a deficient number, since it is larger than the sum of its proper divisors (70119275).

30221221333 is an equidigital number, since it uses as much as digits as its factorization.

30221221333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70119274.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 30221221333 its reverse (33312212203), we get a palindrome (63533433536).

The spelling of 30221221333 in words is "thirty billion, two hundred twenty-one million, two hundred twenty-one thousand, three hundred thirty-three".