2121042110 has 32 divisors (see below), whose sum is σ = 4174168032. Its totient is φ = 769582080.

The previous prime is 2121042073. The next prime is 2121042149. The reversal of 2121042110 is 112401212.

It is a happy number.

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, 29174 + ... + 71366.

It is an arithmetic number, because the mean of its divisors is an integer number (130442751).

Almost surely, 2^2121042110 is an apocalyptic number.

2121042110 is a deficient number, since it is larger than the sum of its proper divisors (2053125922).

2121042110 is a wasteful number, since it uses less digits than its factorization.

2121042110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42668.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2121042110 is about 46054.7729339750. The cubic root of 2121042110 is about 1284.8421149768.

Adding to 2121042110 its reverse (112401212), we get a palindrome (2233443322).

The spelling of 2121042110 in words is "two billion, one hundred twenty-one million, forty-two thousand, one hundred ten".