2121021012002 has 16 divisors (see below), whose sum is σ = 3246888538080. Its totient is φ = 1038851863392.

The previous prime is 2121021011999. The next prime is 2121021012013. The reversal of 2121021012002 is 2002101201212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31724123 + ... + 31790910.

It is an arithmetic number, because the mean of its divisors is an integer number (202930533630).

Almost surely, 2^{2121021012002} is an apocalyptic number.

2121021012002 is a deficient number, since it is larger than the sum of its proper divisors (1125867526078).

2121021012002 is a wasteful number, since it uses less digits than its factorization.

2121021012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63515377.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2121021012002 its reverse (2002101201212), we get a palindrome (4123122213214).

It can be divided in two parts, 21210210 and 12002, that added together give a palindrome (21222212).

The spelling of 2121021012002 in words is "two trillion, one hundred twenty-one billion, twenty-one million, twelve thousand, two".