312212202212213 has 4 divisors (see below), whose sum is σ = 314458333163520. Its totient is φ = 309966071260908.

The previous prime is 312212202212203. The next prime is 312212202212227.

312212202212213 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312212202212213 - 2⁴² = 307814155701109 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 (312212202212203) 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, 1123065475445 + ... + 1123065475722.

It is an arithmetic number, because the mean of its divisors is an integer number (78614583290880).

Almost surely, 2^{312212202212213} is an apocalyptic number.

It is an amenable number.

312212202212213 is a deficient number, since it is larger than the sum of its proper divisors (2246130951307).

312212202212213 is a wasteful number, since it uses less digits than its factorization.

312212202212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246130951306.

The product of its (nonzero) digits is 2304, while the sum is 26.

It can be divided in two parts, 31221220 and 2212213, that added together give a palindrome (33433433).

The spelling of 312212202212213 in words is "three hundred twelve trillion, two hundred twelve billion, two hundred two million, two hundred twelve thousand, two hundred thirteen".