244040205252121 has 16 divisors (see below), whose sum is σ = 257143393987200. Its totient is φ = 230962926268800.

The previous prime is 244040205252113. The next prime is 244040205252149. The reversal of 244040205252121 is 121252502040442.

It is a cyclic number.

It is not a de Polignac number, because 244040205252121 - 2³ = 244040205252113 is a prime.

It is a super-2 number, since 2×244040205252121² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244040205252101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759523620 + ... + 759844858.

It is an arithmetic number, because the mean of its divisors is an integer number (16071462124200).

Almost surely, 2^{244040205252121} is an apocalyptic number.

It is an amenable number.

244040205252121 is a deficient number, since it is larger than the sum of its proper divisors (13103188735079).

244040205252121 is a wasteful number, since it uses less digits than its factorization.

244040205252121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361440.

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 244040205252121 its reverse (121252502040442), we get a palindrome (365292707292563).

The spelling of 244040205252121 in words is "two hundred forty-four trillion, forty billion, two hundred five million, two hundred fifty-two thousand, one hundred twenty-one".