4102244021 has 4 divisors (see below), whose sum is σ = 4105393632. Its totient is φ = 4099094412.

The previous prime is 4102244017. The next prime is 4102244059. The reversal of 4102244021 is 1204422014.

4102244021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 4102244021 - 2² = 4102244017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4102243984 and 4102244002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4102244071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572851 + ... + 1575456.

It is an arithmetic number, because the mean of its divisors is an integer number (1026348408).

Almost surely, 2^4102244021 is an apocalyptic number.

It is an amenable number.

4102244021 is a deficient number, since it is larger than the sum of its proper divisors (3149611).

4102244021 is a wasteful number, since it uses less digits than its factorization.

4102244021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149610.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 4102244021 is about 64048.7628373882. The cubic root of 4102244021 is about 1600.8126107877.

Adding to 4102244021 its reverse (1204422014), we get a palindrome (5306666035).

The spelling of 4102244021 in words is "four billion, one hundred two million, two hundred forty-four thousand, twenty-one".