21220002110 has 16 divisors (see below), whose sum is σ = 38625174000. Its totient is φ = 8392629696.

The previous prime is 21220002073. The next prime is 21220002113. The reversal of 21220002110 is 1120002212.

It is a happy number.

21220002110 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 21220002091 and 21220002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220002113) by changing a digit.

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, 11920460 + ... + 11922239.

It is an arithmetic number, because the mean of its divisors is an integer number (2414073375).

Almost surely, 2^21220002110 is an apocalyptic number.

21220002110 is a deficient number, since it is larger than the sum of its proper divisors (17405171890).

21220002110 is a wasteful number, since it uses less digits than its factorization.

21220002110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23842795.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 21220002110 its reverse (1120002212), we get a palindrome (22340004322).

The spelling of 21220002110 in words is "twenty-one billion, two hundred twenty million, two thousand, one hundred ten".