30010121444221 has 4 divisors (see below), whose sum is σ = 30012169511932. Its totient is φ = 30008073376512.

The previous prime is 30010121444159. The next prime is 30010121444249. The reversal of 30010121444221 is 12244412101003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19606174428996 + 10403947015225 = 4427886^2 + 3225515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30010121444221 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 (30010121447221) 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, 1024011876 + ... + 1024041181.

It is an arithmetic number, because the mean of its divisors is an integer number (7503042377983).

Almost surely, 2^{30010121444221} is an apocalyptic number.

It is an amenable number.

30010121444221 is a deficient number, since it is larger than the sum of its proper divisors (2048067711).

30010121444221 is a wasteful number, since it uses less digits than its factorization.

30010121444221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048067710.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 30010121444221 its reverse (12244412101003), we get a palindrome (42254533545224).

The spelling of 30010121444221 in words is "thirty trillion, ten billion, one hundred twenty-one million, four hundred forty-four thousand, two hundred twenty-one".