21013220022300 has 108 divisors (see below), whose sum is σ = 71852477225256. Its totient is φ = 5094113942400.

The previous prime is 21013220022293. The next prime is 21013220022313. The reversal of 21013220022300 is 322002231012.

21013220022300 is a `hidden beast` number, since 2 + 10 + 132 + 200 + 22 + 300 = 666.

It is a super-2 number, since 2×21013220022300² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1061263839 + ... + 1061283638.

Almost surely, 2^{21013220022300} is an apocalyptic number.

21013220022300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21013220022300 is an abundant number, since it is smaller than the sum of its proper divisors (50839257202956).

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

21013220022300 is a wasteful number, since it uses less digits than its factorization.

21013220022300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122547508 (or 2122547498 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21013220022300 its reverse (322002231012), we get a palindrome (21335222253312).

The spelling of 21013220022300 in words is "twenty-one trillion, thirteen billion, two hundred twenty million, twenty-two thousand, three hundred".