30212110121 has 4 divisors (see below), whose sum is σ = 31802221200. Its totient is φ = 28621999044.

The previous prime is 30212110063. The next prime is 30212110157. The reversal of 30212110121 is 12101121203.

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 30212110121 - 2²² = 30207915817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30212110096 and 30212110105.

It is not an unprimeable number, because it can be changed into a prime (30212110171) 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, 795055511 + ... + 795055548.

It is an arithmetic number, because the mean of its divisors is an integer number (7950555300).

Almost surely, 2^30212110121 is an apocalyptic number.

It is an amenable number.

30212110121 is a deficient number, since it is larger than the sum of its proper divisors (1590111079).

30212110121 is a wasteful number, since it uses less digits than its factorization.

30212110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590111078.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 30212110121 its reverse (12101121203), we get a palindrome (42313231324).

The spelling of 30212110121 in words is "thirty billion, two hundred twelve million, one hundred ten thousand, one hundred twenty-one".