312213001322 has 8 divisors (see below), whose sum is σ = 495867708036. Its totient is φ = 146923765312.

The previous prime is 312213001297. The next prime is 312213001343. The reversal of 312213001322 is 223100312213.

It can be written as a sum of positive squares in 2 ways, for example, as 302259147961 + 9953853361 = 549781^2 + 99769^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 312213001294 and 312213001303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4591367633 + ... + 4591367700.

Almost surely, 2^312213001322 is an apocalyptic number.

312213001322 is a deficient number, since it is larger than the sum of its proper divisors (183654706714).

312213001322 is a wasteful number, since it uses less digits than its factorization.

312213001322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9182735352.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312213001322 its reverse (223100312213), we get a palindrome (535313313535).

The spelling of 312213001322 in words is "three hundred twelve billion, two hundred thirteen million, one thousand, three hundred twenty-two".