312222312313202 has 4 divisors (see below), whose sum is σ = 468333468469806. Its totient is φ = 156111156156600.

The previous prime is 312222312313031. The next prime is 312222312313229. The reversal of 312222312313202 is 202313213222213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 312118260263161 + 104052050041 = 17666869^2 + 322571^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78055578078299 + ... + 78055578078302.

Almost surely, 2^{312222312313202} is an apocalyptic number.

312222312313202 is a deficient number, since it is larger than the sum of its proper divisors (156111156156604).

312222312313202 is a wasteful number, since it uses less digits than its factorization.

312222312313202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156111156156603.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 312222312313202 its reverse (202313213222213), we get a palindrome (514535525535415).

The spelling of 312222312313202 in words is "three hundred twelve trillion, two hundred twenty-two billion, three hundred twelve million, three hundred thirteen thousand, two hundred two".