1213313222 has 24 divisors (see below), whose sum is σ = 2118144168. Its totient is φ = 519062720.

The previous prime is 1213313203. The next prime is 1213313279. The reversal of 1213313222 is 2223133121.

It is a junction number, because it is equal to n+sod(n) for n = 1213313194 and 1213313203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143348 + ... + 151575.

It is an arithmetic number, because the mean of its divisors is an integer number (88256007).

Almost surely, 2^1213313222 is an apocalyptic number.

1213313222 is a deficient number, since it is larger than the sum of its proper divisors (904830946).

1213313222 is a wasteful number, since it uses less digits than its factorization.

1213313222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294964 (or 294953 counting only the distinct ones).

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

The square root of 1213313222 is about 34832.6459230418. The cubic root of 1213313222 is about 1066.5739610620.

Adding to 1213313222 its reverse (2223133121), we get a palindrome (3436446343).

The spelling of 1213313222 in words is "one billion, two hundred thirteen million, three hundred thirteen thousand, two hundred twenty-two".