21212233202300 has 36 divisors (see below), whose sum is σ = 52606338343440. Its totient is φ = 7272765669120.

The previous prime is 21212233202299. The next prime is 21212233202357. The reversal of 21212233202300 is 320233221212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15151594445 + ... + 15151595844.

Almost surely, 2^{21212233202300} is an apocalyptic number.

21212233202300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21212233202300 is an abundant number, since it is smaller than the sum of its proper divisors (31394105141140).

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

21212233202300 is a wasteful number, since it uses less digits than its factorization.

21212233202300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30303190310 (or 30303190303 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21212233202300 its reverse (320233221212), we get a palindrome (21532466423512).

The spelling of 21212233202300 in words is "twenty-one trillion, two hundred twelve billion, two hundred thirty-three million, two hundred two thousand, three hundred".