1312022222 has 32 divisors (see below), whose sum is σ = 2310819840. Its totient is φ = 546966720.

The previous prime is 1312022203. The next prime is 1312022227. The reversal of 1312022222 is 2222202131.

It is a super-2 number, since 2×1312022222² = 3442804622043634568, which contains 22 as substring.

1312022222 is a modest number, since divided by 22222 gives 13120 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 1312022222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312022227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202883 + ... + 209249.

It is an arithmetic number, because the mean of its divisors is an integer number (72213120).

Almost surely, 2^1312022222 is an apocalyptic number.

1312022222 is a deficient number, since it is larger than the sum of its proper divisors (998797618).

1312022222 is a wasteful number, since it uses less digits than its factorization.

1312022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1312022222 is about 36221.8473024223. The cubic root of 1312022222 is about 1094.7469156485.

Adding to 1312022222 its reverse (2222202131), we get a palindrome (3534224353).

The spelling of 1312022222 in words is "one billion, three hundred twelve million, twenty-two thousand, two hundred twenty-two".