21200222222300 has 36 divisors (see below), whose sum is σ = 50186707881576. Its totient is φ = 7709171716800.

The previous prime is 21200222222281. The next prime is 21200222222321. The reversal of 21200222222300 is 322222200212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9636463547 + ... + 9636465746.

Almost surely, 2^{21200222222300} is an apocalyptic number.

21200222222300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21200222222300 is an abundant number, since it is smaller than the sum of its proper divisors (28986485659276).

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

21200222222300 is a wasteful number, since it uses less digits than its factorization.

21200222222300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19272929318 (or 19272929311 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 21200222222300 its reverse (322222200212), we get a palindrome (21522444422512).

The spelling of 21200222222300 in words is "twenty-one trillion, two hundred billion, two hundred twenty-two million, two hundred twenty-two thousand, three hundred".