2121121322002 has 24 divisors (see below), whose sum is σ = 3327010685964. Its totient is φ = 1014150370464.

The previous prime is 2121121321997. The next prime is 2121121322017. The reversal of 2121121322002 is 2002231211212.

It can be written as a sum of positive squares in 2 ways, for example, as 2087155200601 + 33966121401 = 1444699^2 + 184299^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3317248 + ... + 3904660.

Almost surely, 2^{2121121322002} is an apocalyptic number.

2121121322002 is a deficient number, since it is larger than the sum of its proper divisors (1205889363962).

2121121322002 is a wasteful number, since it uses less digits than its factorization.

2121121322002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590874 (or 590851 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2121121322002 its reverse (2002231211212), we get a palindrome (4123352533214).

The spelling of 2121121322002 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-one million, three hundred twenty-two thousand, two".