30121222121103 has 16 divisors (see below), whose sum is σ = 43106599914336. Its totient is φ = 18640691850240.

The previous prime is 30121222121071. The next prime is 30121222121119. The reversal of 30121222121103 is 30112122212103.

It is not a de Polignac number, because 30121222121103 - 2⁵ = 30121222121071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30121222121103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121222121153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4045285308 + ... + 4045292753.

It is an arithmetic number, because the mean of its divisors is an integer number (2694162494646).

Almost surely, 2^{30121222121103} is an apocalyptic number.

30121222121103 is a deficient number, since it is larger than the sum of its proper divisors (12985377793233).

30121222121103 is a wasteful number, since it uses less digits than its factorization.

30121222121103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8090578154.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 30121222121103 its reverse (30112122212103), we get a palindrome (60233344333206).

The spelling of 30121222121103 in words is "thirty trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred three".