21112120233300 has 72 divisors (see below), whose sum is σ = 61677453737536. Its totient is φ = 5575239509760.

The previous prime is 21112120233247. The next prime is 21112120233301. The reversal of 21112120233300 is 333202121112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112120233301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 341589169 + ... + 341650968.

Almost surely, 2^{21112120233300} is an apocalyptic number.

21112120233300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21112120233300 is an abundant number, since it is smaller than the sum of its proper divisors (40565333504236).

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

21112120233300 is a wasteful number, since it uses less digits than its factorization.

21112120233300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683240257 (or 683240250 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21112120233300 its reverse (333202121112), we get a palindrome (21445322354412).

The spelling of 21112120233300 in words is "twenty-one trillion, one hundred twelve billion, one hundred twenty million, two hundred thirty-three thousand, three hundred".