30020021201 has 4 divisors (see below), whose sum is σ = 30357324900. Its totient is φ = 29682717504.

The previous prime is 30020021189. The next prime is 30020021231. The reversal of 30020021201 is 10212002003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10212002003 = 7 ⋅1458857429.

It can be written as a sum of positive squares in 2 ways, for example, as 15775360000 + 14244661201 = 125600^2 + 119351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30020021201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30020021231) 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, 168651716 + ... + 168651893.

It is an arithmetic number, because the mean of its divisors is an integer number (7589331225).

Almost surely, 2^30020021201 is an apocalyptic number.

It is an amenable number.

30020021201 is a deficient number, since it is larger than the sum of its proper divisors (337303699).

30020021201 is an equidigital number, since it uses as much as digits as its factorization.

30020021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337303698.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 30020021201 its reverse (10212002003), we get a palindrome (40232023204).

The spelling of 30020021201 in words is "thirty billion, twenty million, twenty-one thousand, two hundred one".