30013202022121 has 4 divisors (see below), whose sum is σ = 30013213709700. Its totient is φ = 30013190334544.

The previous prime is 30013202022109. The next prime is 30013202022137. The reversal of 30013202022121 is 12122020231003.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3995245413721 + 26017956608400 = 1998811^2 + 5100780^2 .

It is a cyclic number.

It is not a de Polignac number, because 30013202022121 - 2⁷ = 30013202021993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30013202022101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128926 + ... + 7748743.

It is an arithmetic number, because the mean of its divisors is an integer number (7503303427425).

Almost surely, 2^{30013202022121} is an apocalyptic number.

It is an amenable number.

30013202022121 is a deficient number, since it is larger than the sum of its proper divisors (11687579).

30013202022121 is an equidigital number, since it uses as much as digits as its factorization.

30013202022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11687578.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30013202022121 its reverse (12122020231003), we get a palindrome (42135222253124).

The spelling of 30013202022121 in words is "thirty trillion, thirteen billion, two hundred two million, twenty-two thousand, one hundred twenty-one".