21023203221202 has 96 divisors (see below), whose sum is σ = 39574722942720. Its totient is φ = 8302235356800.

The previous prime is 21023203221193. The next prime is 21023203221227. The reversal of 21023203221202 is 20212230232012.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2123336452 + ... + 2123346352.

It is an arithmetic number, because the mean of its divisors is an integer number (412236697320).

Almost surely, 2^{21023203221202} is an apocalyptic number.

21023203221202 is a deficient number, since it is larger than the sum of its proper divisors (18551519721518).

21023203221202 is a wasteful number, since it uses less digits than its factorization.

21023203221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12696 (or 12689 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21023203221202 its reverse (20212230232012), we get a palindrome (41235433453214).

The spelling of 21023203221202 in words is "twenty-one trillion, twenty-three billion, two hundred three million, two hundred twenty-one thousand, two hundred two".