2110404021 has 16 divisors (see below), whose sum is σ = 3250248768. Its totient is φ = 1203795200.

The previous prime is 2110404017. The next prime is 2110404059. The reversal of 2110404021 is 1204040112.

It is a cyclic number.

It is not a de Polignac number, because 2110404021 - 2² = 2110404017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110405021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1880370 + ... + 1881491.

It is an arithmetic number, because the mean of its divisors is an integer number (203140548).

Almost surely, 2^2110404021 is an apocalyptic number.

It is an amenable number.

2110404021 is a deficient number, since it is larger than the sum of its proper divisors (1139844747).

2110404021 is a wasteful number, since it uses less digits than its factorization.

2110404021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761892.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2110404021 is about 45939.1338729846. The cubic root of 2110404021 is about 1282.6904714275.

Adding to 2110404021 its reverse (1204040112), we get a palindrome (3314444133).

The spelling of 2110404021 in words is "two billion, one hundred ten million, four hundred four thousand, twenty-one".