1323121202122 has 8 divisors (see below), whose sum is σ = 2004332118372. Its totient is φ = 655010496000.

The previous prime is 1323121202111. The next prime is 1323121202173. The reversal of 1323121202122 is 2212021213231.

It can be written as a sum of positive squares in 2 ways, for example, as 1110977132841 + 212144069281 = 1054029^2 + 460591^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1323121202093 and 1323121202102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3275052279 + ... + 3275052682.

Almost surely, 2^{1323121202122} is an apocalyptic number.

1323121202122 is a deficient number, since it is larger than the sum of its proper divisors (681210916250).

1323121202122 is a wasteful number, since it uses less digits than its factorization.

1323121202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6550105064.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1323121202122 its reverse (2212021213231), we get a palindrome (3535142415353).

The spelling of 1323121202122 in words is "one trillion, three hundred twenty-three billion, one hundred twenty-one million, two hundred two thousand, one hundred twenty-two".