30220121233 has 2 divisors, whose sum is σ = 30220121234. Its totient is φ = 30220121232.

The previous prime is 30220121171. The next prime is 30220121249. The reversal of 30220121233 is 33212102203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17064719424 + 13155401809 = 130632^2 + 114697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30220121233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30220121233.

It is not a weakly prime, because it can be changed into another prime (30220121333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110060616 + 15110060617.

It is an arithmetic number, because the mean of its divisors is an integer number (15110060617).

Almost surely, 2^30220121233 is an apocalyptic number.

It is an amenable number.

30220121233 is a deficient number, since it is larger than the sum of its proper divisors (1).

30220121233 is an equidigital number, since it uses as much as digits as its factorization.

30220121233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30220121233 its reverse (33212102203), we get a palindrome (63432223436).

The spelling of 30220121233 in words is "thirty billion, two hundred twenty million, one hundred twenty-one thousand, two hundred thirty-three".