30201203010221 has 4 divisors (see below), whose sum is σ = 30201355177692. Its totient is φ = 30201050842752.

The previous prime is 30201203010179. The next prime is 30201203010257. The reversal of 30201203010221 is 12201030210203.

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 26267049769321 + 3934153240900 = 5125139^2 + 1983470^2 .

It is a cyclic number.

It is not a de Polignac number, because 30201203010221 - 2⁶ = 30201203010157 is a prime.

It is a super-2 number, since 2×30201203010221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30201203010221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30201203010271) 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, 75785636 + ... + 76183101.

It is an arithmetic number, because the mean of its divisors is an integer number (7550338794423).

Almost surely, 2^{30201203010221} is an apocalyptic number.

It is an amenable number.

30201203010221 is a deficient number, since it is larger than the sum of its proper divisors (152167471).

30201203010221 is a wasteful number, since it uses less digits than its factorization.

30201203010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152167470.

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

Adding to 30201203010221 its reverse (12201030210203), we get a palindrome (42402233220424).

The spelling of 30201203010221 in words is "thirty trillion, two hundred one billion, two hundred three million, ten thousand, two hundred twenty-one".