1312120222 has 8 divisors (see below), whose sum is σ = 2249348976. Its totient is φ = 562337232.

The previous prime is 1312120219. The next prime is 1312120237. The reversal of 1312120222 is 2220212131.

It is a happy number.

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 = 1312120196 and 1312120205.

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, 46861423 + ... + 46861450.

It is an arithmetic number, because the mean of its divisors is an integer number (281168622).

Almost surely, 2^1312120222 is an apocalyptic number.

1312120222 is a deficient number, since it is larger than the sum of its proper divisors (937228754).

1312120222 is an equidigital number, since it uses as much as digits as its factorization.

1312120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93722882.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1312120222 is about 36223.2000519004. The cubic root of 1312120222 is about 1094.7741719264.

Adding to 1312120222 its reverse (2220212131), we get a palindrome (3532332353).

The spelling of 1312120222 in words is "one billion, three hundred twelve million, one hundred twenty thousand, two hundred twenty-two".