1312301222 has 8 divisors (see below), whose sum is σ = 1971696576. Its totient is φ = 655069032.

The previous prime is 1312301209. The next prime is 1312301233. The reversal of 1312301222 is 2221032131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1312301222.

It is a congruent number.

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, 539273 + ... + 541700.

It is an arithmetic number, because the mean of its divisors is an integer number (246462072).

Almost surely, 2^1312301222 is an apocalyptic number.

1312301222 is a deficient number, since it is larger than the sum of its proper divisors (659395354).

1312301222 is a wasteful number, since it uses less digits than its factorization.

1312301222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081582.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1312301222 is about 36225.6983645588. The cubic root of 1312301222 is about 1094.8245090350.

Adding to 1312301222 its reverse (2221032131), we get a palindrome (3533333353).

The spelling of 1312301222 in words is "one billion, three hundred twelve million, three hundred one thousand, two hundred twenty-two".