1313212222 has 16 divisors (see below), whose sum is σ = 2278346112. Its totient is φ = 556023960.

The previous prime is 1313212183. The next prime is 1313212231. The reversal of 1313212222 is 2222123131.

It is a self number, because there is not a number n which added to its sum of digits gives 1313212222.

It is a congruent number.

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, 563904 + ... + 566227.

It is an arithmetic number, because the mean of its divisors is an integer number (142396632).

Almost surely, 2^1313212222 is an apocalyptic number.

1313212222 is a deficient number, since it is larger than the sum of its proper divisors (965133890).

1313212222 is a wasteful number, since it uses less digits than its factorization.

1313212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130223.

The product of its digits is 288, while the sum is 19.

The square root of 1313212222 is about 36238.2701297951. The cubic root of 1313212222 is about 1095.0777929622.

Adding to 1313212222 its reverse (2222123131), we get a palindrome (3535335353).

The spelling of 1313212222 in words is "one billion, three hundred thirteen million, two hundred twelve thousand, two hundred twenty-two".