212310652265 has 8 divisors (see below), whose sum is σ = 254880888840. Its totient is φ = 169776451072.

The previous prime is 212310652261. The next prime is 212310652291. The reversal of 212310652265 is 562256013212.

It can be written as a sum of positive squares in 4 ways, for example, as 1051834624 + 211258817641 = 32432^2 + 459629^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 212310652265 - 2² = 212310652261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212310652261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8995880 + ... + 9019449.

It is an arithmetic number, because the mean of its divisors is an integer number (31860111105).

Almost surely, 2^212310652265 is an apocalyptic number.

It is an amenable number.

212310652265 is a deficient number, since it is larger than the sum of its proper divisors (42570236575).

212310652265 is a wasteful number, since it uses less digits than its factorization.

212310652265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18017691.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 212310652265 its reverse (562256013212), we get a palindrome (774566665477).

The spelling of 212310652265 in words is "two hundred twelve billion, three hundred ten million, six hundred fifty-two thousand, two hundred sixty-five".