21220002110223 has 48 divisors (see below), whose sum is σ = 36831911440896. Its totient is φ = 11509972119360.

The previous prime is 21220002110207. The next prime is 21220002110249. The reversal of 21220002110223 is 32201120002212.

21220002110223 is a `hidden beast` number, since 212 + 20 + 0 + 0 + 211 + 0 + 223 = 666.

It is not a de Polignac number, because 21220002110223 - 2⁴ = 21220002110207 is a prime.

It is a super-2 number, since 2×21220002110223² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21220002110196 and 21220002110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220002150223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55705540 + ... + 56085177.

It is an arithmetic number, because the mean of its divisors is an integer number (767331488352).

Almost surely, 2^{21220002110223} is an apocalyptic number.

21220002110223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21220002110223 is a deficient number, since it is larger than the sum of its proper divisors (15611909330673).

21220002110223 is a wasteful number, since it uses less digits than its factorization.

21220002110223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111790884 (or 111790881 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21220002110223 its reverse (32201120002212), we get a palindrome (53421122112435).

The spelling of 21220002110223 in words is "twenty-one trillion, two hundred twenty billion, two million, one hundred ten thousand, two hundred twenty-three".