21110011220102 has 16 divisors (see below), whose sum is σ = 36188741739552. Its totient is φ = 9047109896640.

The previous prime is 21110011220059. The next prime is 21110011220161. The reversal of 21110011220102 is 20102211001112.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 469178 + ... + 6514610.

It is an arithmetic number, because the mean of its divisors is an integer number (2261796358722).

Almost surely, 2^{21110011220102} is an apocalyptic number.

21110011220102 is a deficient number, since it is larger than the sum of its proper divisors (15078730519450).

21110011220102 is a wasteful number, since it uses less digits than its factorization.

21110011220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6294863.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21110011220102 its reverse (20102211001112), we get a palindrome (41212222221214).

The spelling of 21110011220102 in words is "twenty-one trillion, one hundred ten billion, eleven million, two hundred twenty thousand, one hundred two".