21022201110 has 32 divisors (see below), whose sum is σ = 50508974592. Its totient is φ = 5599732320.

The previous prime is 21022201033. The next prime is 21022201111. The reversal of 21022201110 is 1110222012.

21022201110 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022201111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359086 + ... + 413505.

It is an arithmetic number, because the mean of its divisors is an integer number (1578405456).

Almost surely, 2^21022201110 is an apocalyptic number.

21022201110 is an abundant number, since it is smaller than the sum of its proper divisors (29486773482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21022201110 is a wasteful number, since it uses less digits than its factorization.

21022201110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773508.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21022201110 its reverse (1110222012), we get a palindrome (22132423122).

The spelling of 21022201110 in words is "twenty-one billion, twenty-two million, two hundred one thousand, one hundred ten".