30121120210 has 16 divisors (see below), whose sum is σ = 55683368856. Its totient is φ = 11722814208.

The previous prime is 30121120201. The next prime is 30121120291. The reversal of 30121120210 is 1202112103.

30121120210 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 30091493961 + 29626249 = 173469^2 + 5443^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40703847 + ... + 40704586.

Almost surely, 2^30121120210 is an apocalyptic number.

30121120210 is a deficient number, since it is larger than the sum of its proper divisors (25562248646).

30121120210 is a wasteful number, since it uses less digits than its factorization.

30121120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81408477.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 30121120210 its reverse (1202112103), we get a palindrome (31323232313).

The spelling of 30121120210 in words is "thirty billion, one hundred twenty-one million, one hundred twenty thousand, two hundred ten".