1321031222 has 8 divisors (see below), whose sum is σ = 2264624976. Its totient is φ = 566156232.

The previous prime is 1321031219. The next prime is 1321031233. The reversal of 1321031222 is 2221301231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1321031222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47179673 + ... + 47179700.

It is an arithmetic number, because the mean of its divisors is an integer number (283078122).

Almost surely, 2^1321031222 is an apocalyptic number.

1321031222 is a deficient number, since it is larger than the sum of its proper divisors (943593754).

1321031222 is an equidigital number, since it uses as much as digits as its factorization.

1321031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94359382.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1321031222 is about 36345.9932042034. The cubic root of 1321031222 is about 1097.2468953820.

Adding to 1321031222 its reverse (2221301231), we get a palindrome (3542332453).

The spelling of 1321031222 in words is "one billion, three hundred twenty-one million, thirty-one thousand, two hundred twenty-two".