1312021222322 has 8 divisors (see below), whose sum is σ = 1968535049472. Its totient is φ = 655842872500.

The previous prime is 1312021222319. The next prime is 1312021222349. The reversal of 1312021222322 is 2232221202131.

It is a happy number.

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

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, 83859554 + ... + 83875197.

It is an arithmetic number, because the mean of its divisors is an integer number (246066881184).

Almost surely, 2^{1312021222322} is an apocalyptic number.

1312021222322 is a deficient number, since it is larger than the sum of its proper divisors (656513827150).

1312021222322 is a wasteful number, since it uses less digits than its factorization.

1312021222322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167738664.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1312021222322 its reverse (2232221202131), we get a palindrome (3544242424453).

The spelling of 1312021222322 in words is "one trillion, three hundred twelve billion, twenty-one million, two hundred twenty-two thousand, three hundred twenty-two".