265235211222001 has 16 divisors (see below), whose sum is σ = 280945632871296. Its totient is φ = 249536835415296.

The previous prime is 265235211221983. The next prime is 265235211222041. The reversal of 265235211222001 is 100222112532562.

It is a cyclic number.

It is not a de Polignac number, because 265235211222001 - 2¹⁷ = 265235211090929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265235211222041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1444646730 + ... + 1444830316.

It is an arithmetic number, because the mean of its divisors is an integer number (17559102054456).

Almost surely, 2^{265235211222001} is an apocalyptic number.

It is an amenable number.

265235211222001 is a deficient number, since it is larger than the sum of its proper divisors (15710421649295).

265235211222001 is a wasteful number, since it uses less digits than its factorization.

265235211222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215928.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 265235211222001 its reverse (100222112532562), we get a palindrome (365457323754563).

The spelling of 265235211222001 in words is "two hundred sixty-five trillion, two hundred thirty-five billion, two hundred eleven million, two hundred twenty-two thousand, one".