1321222022 has 4 divisors (see below), whose sum is σ = 1981833036. Its totient is φ = 660611010.

The previous prime is 1321222013. The next prime is 1321222037. The reversal of 1321222022 is 2202221231.

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

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, 330305504 + ... + 330305507.

It is an arithmetic number, because the mean of its divisors is an integer number (495458259).

Almost surely, 2^1321222022 is an apocalyptic number.

1321222022 is a deficient number, since it is larger than the sum of its proper divisors (660611014).

1321222022 is an equidigital number, since it uses as much as digits as its factorization.

1321222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660611013.

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

The square root of 1321222022 is about 36348.6178829402. The cubic root of 1321222022 is about 1097.2997189201.

Adding to 1321222022 its reverse (2202221231), we get a palindrome (3523443253).

The spelling of 1321222022 in words is "one billion, three hundred twenty-one million, two hundred twenty-two thousand, twenty-two".