3030201200021 has 4 divisors (see below), whose sum is σ = 3208448329452. Its totient is φ = 2851954070592.

The previous prime is 3030201200009. The next prime is 3030201200023. The reversal of 3030201200021 is 1200021020303.

It is a happy number.

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 1395930435025 + 1634270764996 = 1181495^2 + 1278386^2 .

It is a cyclic number.

It is not a de Polignac number, because 3030201200021 - 2²⁶ = 3030134091157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3030201199969 and 3030201200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3030201200023) 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, 89123564690 + ... + 89123564723.

It is an arithmetic number, because the mean of its divisors is an integer number (802112082363).

Almost surely, 2^{3030201200021} is an apocalyptic number.

It is an amenable number.

3030201200021 is a deficient number, since it is larger than the sum of its proper divisors (178247129431).

3030201200021 is a wasteful number, since it uses less digits than its factorization.

3030201200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178247129430.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 3030201200021 its reverse (1200021020303), we get a palindrome (4230222220324).

The spelling of 3030201200021 in words is "three trillion, thirty billion, two hundred one million, two hundred thousand, twenty-one".