21101030222200 has 96 divisors (see below), whose sum is σ = 50802842160000. Its totient is φ = 8141137804800.

The previous prime is 21101030222141. The next prime is 21101030222201. The reversal of 21101030222200 is 222203010112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101030222201) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3912226 + ... + 7583374.

It is an arithmetic number, because the mean of its divisors is an integer number (529196272500).

Almost surely, 2^{21101030222200} is an apocalyptic number.

21101030222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21101030222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25401421080000).

21101030222200 is an abundant number, since it is smaller than the sum of its proper divisors (29701811937800).

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

21101030222200 is a wasteful number, since it uses less digits than its factorization.

21101030222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672185 (or 3672176 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21101030222200 its reverse (222203010112), we get a palindrome (21323233232312).

The spelling of 21101030222200 in words is "twenty-one trillion, one hundred one billion, thirty million, two hundred twenty-two thousand, two hundred".