1213105322 has 48 divisors (see below), whose sum is σ = 2223845280. Its totient is φ = 491400000.

The previous prime is 1213105319. The next prime is 1213105349. The reversal of 1213105322 is 2235013121.

It is a junction number, because it is equal to n+sod(n) for n = 1213105294 and 1213105303.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102197 + ... + 113447.

It is an arithmetic number, because the mean of its divisors is an integer number (46330110).

Almost surely, 2^1213105322 is an apocalyptic number.

1213105322 is a deficient number, since it is larger than the sum of its proper divisors (1010739958).

1213105322 is a wasteful number, since it uses less digits than its factorization.

1213105322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11319 (or 11306 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1213105322 is about 34829.6615257743. The cubic root of 1213105322 is about 1066.5130387904.

Adding to 1213105322 its reverse (2235013121), we get a palindrome (3448118443).

The spelling of 1213105322 in words is "one billion, two hundred thirteen million, one hundred five thousand, three hundred twenty-two".