1131301222 has 4 divisors (see below), whose sum is σ = 1696951836. Its totient is φ = 565650610.

The previous prime is 1131301219. The next prime is 1131301243. The reversal of 1131301222 is 2221031311.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×1131301222⁴ (a number of 37 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131301196 and 1131301205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282825304 + ... + 282825307.

It is an arithmetic number, because the mean of its divisors is an integer number (424237959).

Almost surely, 2^1131301222 is an apocalyptic number.

1131301222 is a deficient number, since it is larger than the sum of its proper divisors (565650614).

1131301222 is an equidigital number, since it uses as much as digits as its factorization.

1131301222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565650613.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1131301222 is about 33634.8215693201. The cubic root of 1131301222 is about 1041.9800855313.

Adding to 1131301222 its reverse (2221031311), we get a palindrome (3352332533).

The spelling of 1131301222 in words is "one billion, one hundred thirty-one million, three hundred one thousand, two hundred twenty-two".