1213323122 has 16 divisors (see below), whose sum is σ = 1988474400. Its totient is φ = 550667040.

The previous prime is 1213323113. The next prime is 1213323143. The reversal of 1213323122 is 2213233121.

It is a junction number, because it is equal to n+sod(n) for n = 1213323094 and 1213323103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27347 + ... + 56342.

It is an arithmetic number, because the mean of its divisors is an integer number (124279650).

Almost surely, 2^1213323122 is an apocalyptic number.

1213323122 is a deficient number, since it is larger than the sum of its proper divisors (775151278).

1213323122 is a wasteful number, since it uses less digits than its factorization.

1213323122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84361.

The product of its digits is 432, while the sum is 20.

The square root of 1213323122 is about 34832.7880308195. The cubic root of 1213323122 is about 1066.5768619489.

Adding to 1213323122 its reverse (2213233121), we get a palindrome (3426556243).

Subtracting 1213323122 from its reverse (2213233121), we obtain a palindrome (999909999).

The spelling of 1213323122 in words is "one billion, two hundred thirteen million, three hundred twenty-three thousand, one hundred twenty-two".