21110203102200 has 96 divisors (see below), whose sum is σ = 65584828782960. Its totient is φ = 5617069286400.

The previous prime is 21110203102169. The next prime is 21110203102237. The reversal of 21110203102200 is 220130201112.

It is a super-2 number, since 2×21110203102200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21110203102200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38219971 + ... + 38768370.

Almost surely, 2^{21110203102200} is an apocalyptic number.

21110203102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21110203102200 is an abundant number, since it is smaller than the sum of its proper divisors (44474625680760).

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

21110203102200 is a wasteful number, since it uses less digits than its factorization.

21110203102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76988817 (or 76988808 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21110203102200 its reverse (220130201112), we get a palindrome (21330333303312).

The spelling of 21110203102200 in words is "twenty-one trillion, one hundred ten billion, two hundred three million, one hundred two thousand, two hundred".