21010100220200 has 192 divisors, whose sum is σ = 60796733760000. Its totient is φ = 6574638090240.

The previous prime is 21010100220163. The next prime is 21010100220247. The reversal of 21010100220200 is 202200101012.

It is a happy number.

It is a super-2 number, since 2×21010100220200² (a number of 27 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 4865600 + ... + 8105199.

It is an arithmetic number, because the mean of its divisors is an integer number (316649655000).

Almost surely, 2^{21010100220200} is an apocalyptic number.

21010100220200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21010100220200 is an abundant number, since it is smaller than the sum of its proper divisors (39786633539800).

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

21010100220200 is a wasteful number, since it uses less digits than its factorization.

21010100220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12970924 (or 12970915 counting only the distinct ones).

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

Adding to 21010100220200 its reverse (202200101012), we get a palindrome (21212300321212).

The spelling of 21010100220200 in words is "twenty-one trillion, ten billion, one hundred million, two hundred twenty thousand, two hundred".