2121122002002 has 16 divisors (see below), whose sum is σ = 4272763746720. Its totient is φ = 701954043552.

The previous prime is 2121122001991. The next prime is 2121122002003. The reversal of 2121122002002 is 2002002211212.

It is not an unprimeable number, because it can be changed into a prime (2121122002003) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1271655043 + ... + 1271656710.

It is an arithmetic number, because the mean of its divisors is an integer number (267047734170).

Almost surely, 2^{2121122002002} is an apocalyptic number.

2121122002002 is an abundant number, since it is smaller than the sum of its proper divisors (2151641744718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121122002002 is a wasteful number, since it uses less digits than its factorization.

2121122002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543311897.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2121122002002 its reverse (2002002211212), we get a palindrome (4123124213214).

The spelling of 2121122002002 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-two million, two thousand, two".