244707223673221 has 4 divisors (see below), whose sum is σ = 259101766242252. Its totient is φ = 230312681104192.

The previous prime is 244707223673219. The next prime is 244707223673257. The reversal of 244707223673221 is 122376322707442.

244707223673221 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.

It can be written as a sum of positive squares in 2 ways, for example, as 154582845928225 + 90124377744996 = 12433135^2 + 9493386^2 .

It is a cyclic number.

It is not a de Polignac number, because 244707223673221 - 2¹ = 244707223673219 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 (244707223673291) 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, 7197271284490 + ... + 7197271284523.

It is an arithmetic number, because the mean of its divisors is an integer number (64775441560563).

Almost surely, 2^{244707223673221} is an apocalyptic number.

It is an amenable number.

244707223673221 is a deficient number, since it is larger than the sum of its proper divisors (14394542569031).

244707223673221 is a wasteful number, since it uses less digits than its factorization.

244707223673221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14394542569030.

The product of its (nonzero) digits is 9483264, while the sum is 52.

The spelling of 244707223673221 in words is "two hundred forty-four trillion, seven hundred seven billion, two hundred twenty-three million, six hundred seventy-three thousand, two hundred twenty-one".