21022202022110 has 16 divisors (see below), whose sum is σ = 39485179450656. Its totient is φ = 8043277295328.

The previous prime is 21022202022079. The next prime is 21022202022127. The reversal of 21022202022110 is 1122020222012.

It is a happy number.

It is a Curzon number.

It is a congruent number.

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, 45700438949 + ... + 45700439408.

It is an arithmetic number, because the mean of its divisors is an integer number (2467823715666).

Almost surely, 2^{21022202022110} is an apocalyptic number.

21022202022110 is a deficient number, since it is larger than the sum of its proper divisors (18462977428546).

21022202022110 is a wasteful number, since it uses less digits than its factorization.

21022202022110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91400878387.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21022202022110 its reverse (1122020222012), we get a palindrome (22144222244122).

The spelling of 21022202022110 in words is "twenty-one trillion, twenty-two billion, two hundred two million, twenty-two thousand, one hundred ten".