244201021 has 8 divisors (see below), whose sum is σ = 248004288. Its totient is φ = 240408000.

The previous prime is 244201019. The next prime is 244201031. The reversal of 244201021 is 120102442.

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

It is a cyclic number.

It is not a de Polignac number, because 244201021 - 2¹ = 244201019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244200986 and 244201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244201031) 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, 55461 + ... + 59701.

It is an arithmetic number, because the mean of its divisors is an integer number (31000536).

Almost surely, 2^244201021 is an apocalyptic number.

It is an amenable number.

244201021 is a deficient number, since it is larger than the sum of its proper divisors (3803267).

244201021 is an equidigital number, since it uses as much as digits as its factorization.

244201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 244201021 is about 15626.9325524877. The cubic root of 244201021 is about 625.0515336707.

Adding to 244201021 its reverse (120102442), we get a palindrome (364303463).

The spelling of 244201021 in words is "two hundred forty-four million, two hundred one thousand, twenty-one".