21121022200300 has 36 divisors (see below), whose sum is σ = 49999219829496. Its totient is φ = 7680371708800.

The previous prime is 21121022200283. The next prime is 21121022200307. The reversal of 21121022200300 is 300222012112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21121022200307) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9600463537 + ... + 9600465736.

It is an arithmetic number, because the mean of its divisors is an integer number (1388867217486).

Almost surely, 2^{21121022200300} is an apocalyptic number.

21121022200300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21121022200300 is an abundant number, since it is smaller than the sum of its proper divisors (28878197629196).

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

21121022200300 is a wasteful number, since it uses less digits than its factorization.

21121022200300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19200929298 (or 19200929291 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21121022200300 its reverse (300222012112), we get a palindrome (21421244212412).

The spelling of 21121022200300 in words is "twenty-one trillion, one hundred twenty-one billion, twenty-two million, two hundred thousand, three hundred".