211265961297 has 8 divisors (see below), whose sum is σ = 284591948256. Its totient is φ = 139391974272.

The previous prime is 211265961287. The next prime is 211265961311. The reversal of 211265961297 is 792169562112.

211265961297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 211265961297 - 2⁴ = 211265961281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211265961287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362999643 + ... + 363000224.

It is an arithmetic number, because the mean of its divisors is an integer number (35573993532).

Almost surely, 2^211265961297 is an apocalyptic number.

It is an amenable number.

211265961297 is a deficient number, since it is larger than the sum of its proper divisors (73325986959).

211265961297 is an equidigital number, since it uses as much as digits as its factorization.

211265961297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725999967.

The product of its digits is 816480, while the sum is 51.

The spelling of 211265961297 in words is "two hundred eleven billion, two hundred sixty-five million, nine hundred sixty-one thousand, two hundred ninety-seven".