244004102021 has 4 divisors (see below), whose sum is σ = 256846423200. Its totient is φ = 231161780844.

The previous prime is 244004102009. The next prime is 244004102039. The reversal of 244004102021 is 120201400442.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120201400442 = 2 ⋅60100700221.

It is a cyclic number.

It is not a de Polignac number, because 244004102021 - 2²² = 243999907717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 244004101984 and 244004102002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244004102521) 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, 6421160561 + ... + 6421160598.

It is an arithmetic number, because the mean of its divisors is an integer number (64211605800).

Almost surely, 2^244004102021 is an apocalyptic number.

It is an amenable number.

244004102021 is a deficient number, since it is larger than the sum of its proper divisors (12842321179).

244004102021 is a wasteful number, since it uses less digits than its factorization.

244004102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12842321178.

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

Adding to 244004102021 its reverse (120201400442), we get a palindrome (364205502463).

The spelling of 244004102021 in words is "two hundred forty-four billion, four million, one hundred two thousand, twenty-one".