21120211202 has 16 divisors (see below), whose sum is σ = 32161549824. Its totient is φ = 10400790000.

The previous prime is 21120211201. The next prime is 21120211207. The reversal of 21120211202 is 20211202112.

It is not an unprimeable number, because it can be changed into a prime (21120211201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 235124 + ... + 312287.

It is an arithmetic number, because the mean of its divisors is an integer number (2010096864).

Almost surely, 2^21120211202 is an apocalyptic number.

21120211202 is a deficient number, since it is larger than the sum of its proper divisors (11041338622).

21120211202 is a wasteful number, since it uses less digits than its factorization.

21120211202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547705.

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

Adding to 21120211202 its reverse (20211202112), we get a palindrome (41331413314).

The spelling of 21120211202 in words is "twenty-one billion, one hundred twenty million, two hundred eleven thousand, two hundred two".