21110022220102 has 16 divisors (see below), whose sum is σ = 33332052639600. Its totient is φ = 9999352627200.

The previous prime is 21110022220093. The next prime is 21110022220123. The reversal of 21110022220102 is 20102222001112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698227 + ... + 6535102.

It is an arithmetic number, because the mean of its divisors is an integer number (2083253289975).

Almost surely, 2^{21110022220102} is an apocalyptic number.

21110022220102 is a deficient number, since it is larger than the sum of its proper divisors (12222030419498).

21110022220102 is a wasteful number, since it uses less digits than its factorization.

21110022220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310151.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21110022220102 its reverse (20102222001112), we get a palindrome (41212244221214).

The spelling of 21110022220102 in words is "twenty-one trillion, one hundred ten billion, twenty-two million, two hundred twenty thousand, one hundred two".