2110442021 has 4 divisors (see below), whose sum is σ = 2159522112. Its totient is φ = 2061361932.

The previous prime is 2110441979. The next prime is 2110442063. The reversal of 2110442021 is 1202440112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2110441979) and next prime (2110442063).

It is a cyclic number.

It is not a de Polignac number, because 2110442021 - 2²⁶ = 2043333157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113442021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 24539981 + ... + 24540066.

It is an arithmetic number, because the mean of its divisors is an integer number (539880528).

Almost surely, 2^2110442021 is an apocalyptic number.

It is an amenable number.

2110442021 is a deficient number, since it is larger than the sum of its proper divisors (49080091).

2110442021 is an equidigital number, since it uses as much as digits as its factorization.

2110442021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49080090.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2110442021 is about 45939.5474618547. The cubic root of 2110442021 is about 1282.6981701027.

Adding to 2110442021 its reverse (1202440112), we get a palindrome (3312882133).

The spelling of 2110442021 in words is "two billion, one hundred ten million, four hundred forty-two thousand, twenty-one".