1312210022 has 4 divisors (see below), whose sum is σ = 1968315036. Its totient is φ = 656105010.

The previous prime is 1312209971. The next prime is 1312210027. The reversal of 1312210022 is 2200122131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1312209979 and 1312210006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312210027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328052504 + ... + 328052507.

It is an arithmetic number, because the mean of its divisors is an integer number (492078759).

Almost surely, 2^1312210022 is an apocalyptic number.

1312210022 is a deficient number, since it is larger than the sum of its proper divisors (656105014).

1312210022 is an equidigital number, since it uses as much as digits as its factorization.

1312210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656105013.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1312210022 is about 36224.4395677835. The cubic root of 1312210022 is about 1094.7991463853.

Adding to 1312210022 its reverse (2200122131), we get a palindrome (3512332153).

The spelling of 1312210022 in words is "one billion, three hundred twelve million, two hundred ten thousand, twenty-two".