312332224021322 has 4 divisors (see below), whose sum is σ = 468498336031986. Its totient is φ = 156166112010660.

The previous prime is 312332224021289. The next prime is 312332224021327. The reversal of 312332224021322 is 223120422233213.

It is a happy number.

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., 299808913330081 + 12523310691241 = 17314991^2 + 3538829^2 .

It is not an unprimeable number, because it can be changed into a prime (312332224021327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78083056005329 + ... + 78083056005332.

Almost surely, 2^{312332224021322} is an apocalyptic number.

312332224021322 is a deficient number, since it is larger than the sum of its proper divisors (156166112010664).

312332224021322 is a wasteful number, since it uses less digits than its factorization.

312332224021322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156166112010663.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 312332224021322 its reverse (223120422233213), we get a palindrome (535452646254535).

The spelling of 312332224021322 in words is "three hundred twelve trillion, three hundred thirty-two billion, two hundred twenty-four million, twenty-one thousand, three hundred twenty-two".