2121211121110 has 32 divisors (see below), whose sum is σ = 3822890095872. Its totient is φ = 847438420320.

The previous prime is 2121211121047. The next prime is 2121211121203. The reversal of 2121211121110 is 111211121212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26916865 + ... + 26995555.

It is an arithmetic number, because the mean of its divisors is an integer number (119465315496).

Almost surely, 2^{2121211121110} is an apocalyptic number.

2121211121110 is a deficient number, since it is larger than the sum of its proper divisors (1701678974762).

2121211121110 is a wasteful number, since it uses less digits than its factorization.

2121211121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81988.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 2121211121110 its reverse (111211121212), we get a palindrome (2232422242322).

The spelling of 2121211121110 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, one hundred twenty-one thousand, one hundred ten".