30200202121 has 4 divisors (see below), whose sum is σ = 30244419792. Its totient is φ = 30155984452.

The previous prime is 30200202113. The next prime is 30200202157. The reversal of 30200202121 is 12120200203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30200202121 - 2³ = 30200202113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30200602121) 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, 22107811 + ... + 22109176.

It is an arithmetic number, because the mean of its divisors is an integer number (7561104948).

Almost surely, 2^30200202121 is an apocalyptic number.

It is an amenable number.

30200202121 is a deficient number, since it is larger than the sum of its proper divisors (44217671).

30200202121 is an equidigital number, since it uses as much as digits as its factorization.

30200202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44217670.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 30200202121 its reverse (12120200203), we get a palindrome (42320402324).

The spelling of 30200202121 in words is "thirty billion, two hundred million, two hundred two thousand, one hundred twenty-one".