1213313822 has 8 divisors (see below), whose sum is σ = 2079966576. Its totient is φ = 519991632.

The previous prime is 1213313821. The next prime is 1213313831. The reversal of 1213313822 is 2283133121.

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 = 1213313791 and 1213313800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213313821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43332623 + ... + 43332650.

It is an arithmetic number, because the mean of its divisors is an integer number (259995822).

Almost surely, 2^1213313822 is an apocalyptic number.

1213313822 is a deficient number, since it is larger than the sum of its proper divisors (866652754).

1213313822 is an equidigital number, since it uses as much as digits as its factorization.

1213313822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86665282.

The product of its digits is 1728, while the sum is 26.

The square root of 1213313822 is about 34832.6545356509. The cubic root of 1213313822 is about 1066.5741368738.

Adding to 1213313822 its reverse (2283133121), we get a palindrome (3496446943).

The spelling of 1213313822 in words is "one billion, two hundred thirteen million, three hundred thirteen thousand, eight hundred twenty-two".