2121110030 has 32 divisors (see below), whose sum is σ = 4328100000. Its totient is φ = 741958272.

The previous prime is 2121110027. The next prime is 2121110059. The reversal of 2121110030 is 300111212.

It is a junction number, because it is equal to n+sod(n) for n = 2121109993 and 2121110020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426905 + ... + 431844.

It is an arithmetic number, because the mean of its divisors is an integer number (135253125).

Almost surely, 2^2121110030 is an apocalyptic number.

2121110030 is an abundant number, since it is smaller than the sum of its proper divisors (2206989970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121110030 is a wasteful number, since it uses less digits than its factorization.

2121110030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858788.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2121110030 is about 46055.5103109281. The cubic root of 2121110030 is about 1284.8558292330.

Adding to 2121110030 its reverse (300111212), we get a palindrome (2421221242).

The spelling of 2121110030 in words is "two billion, one hundred twenty-one million, one hundred ten thousand, thirty".