21102220002202 has 16 divisors (see below), whose sum is σ = 31947411779712. Its totient is φ = 10453164402240.

The previous prime is 21102220002191. The next prime is 21102220002233. The reversal of 21102220002202 is 20220002220112.

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 7 ways as a sum of consecutive naturals, for example, 19896924 + ... + 20930647.

It is an arithmetic number, because the mean of its divisors is an integer number (1996713236232).

Almost surely, 2^{21102220002202} is an apocalyptic number.

21102220002202 is a deficient number, since it is larger than the sum of its proper divisors (10845191777510).

21102220002202 is a wasteful number, since it uses less digits than its factorization.

21102220002202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40829973.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21102220002202 its reverse (20220002220112), we get a palindrome (41322222222314).

The spelling of 21102220002202 in words is "twenty-one trillion, one hundred two billion, two hundred twenty million, two thousand, two hundred two".