2444202121 has 8 divisors (see below), whose sum is σ = 2471275584. Its totient is φ = 2417185200.

The previous prime is 2444202097. The next prime is 2444202127. The reversal of 2444202121 is 1212024442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2444202121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2444202092 and 2444202101.

It is not an unprimeable number, because it can be changed into a prime (2444202127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75946 + ... + 103228.

It is an arithmetic number, because the mean of its divisors is an integer number (308909448).

Almost surely, 2^2444202121 is an apocalyptic number.

It is an amenable number.

2444202121 is a deficient number, since it is larger than the sum of its proper divisors (27073463).

2444202121 is a wasteful number, since it uses less digits than its factorization.

2444202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28271.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2444202121 is about 49438.8725700738. The cubic root of 2444202121 is about 1347.0354923485.

Adding to 2444202121 its reverse (1212024442), we get a palindrome (3656226563).

The spelling of 2444202121 in words is "two billion, four hundred forty-four million, two hundred two thousand, one hundred twenty-one".