21022010200 has 24 divisors (see below), whose sum is σ = 48876174180. Its totient is φ = 8408804000.

The previous prime is 21022010197. The next prime is 21022010201. The reversal of 21022010200 is 201022012.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022010201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52554826 + ... + 52555225.

Almost surely, 2^21022010200 is an apocalyptic number.

21022010200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21022010200 is an abundant number, since it is smaller than the sum of its proper divisors (27854163980).

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

21022010200 is a wasteful number, since it uses less digits than its factorization.

21022010200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105110067 (or 105110058 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 21022010200 its reverse (201022012), we get a palindrome (21223032212).

The spelling of 21022010200 in words is "twenty-one billion, twenty-two million, ten thousand, two hundred".