30226121 has 2 divisors, whose sum is σ = 30226122. Its totient is φ = 30226120.

The previous prime is 30226099. The next prime is 30226201. The reversal of 30226121 is 12162203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21160000 + 9066121 = 4600^2 + 3011^2 .

It is an emirp because it is prime and its reverse (12162203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30226121 - 2⁶ = 30226057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30226121.

It is not a weakly prime, because it can be changed into another prime (30226421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15113060 + 15113061.

It is an arithmetic number, because the mean of its divisors is an integer number (15113061).

Almost surely, 2^30226121 is an apocalyptic number.

It is an amenable number.

30226121 is a deficient number, since it is larger than the sum of its proper divisors (1).

30226121 is an equidigital number, since it uses as much as digits as its factorization.

30226121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 30226121 is about 5497.8287532443. The cubic root of 30226121 is about 311.5019757052.

Adding to 30226121 its reverse (12162203), we get a palindrome (42388324).

The spelling of 30226121 in words is "thirty million, two hundred twenty-six thousand, one hundred twenty-one".