22033221300 has 54 divisors (see below), whose sum is σ = 69061910918. Its totient is φ = 5875525440.

The previous prime is 22033221233. The next prime is 22033221307. The reversal of 22033221300 is 312233022.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9474084 + 22023747216 = 3078^2 + 148404^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22033221307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12239779 + ... + 12241578.

Almost surely, 2^22033221300 is an apocalyptic number.

22033221300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22033221300 is an abundant number, since it is smaller than the sum of its proper divisors (47028689618).

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

22033221300 is a wasteful number, since it uses less digits than its factorization.

22033221300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24481377 (or 24481367 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 22033221300 its reverse (312233022), we get a palindrome (22345454322).

The spelling of 22033221300 in words is "twenty-two billion, thirty-three million, two hundred twenty-one thousand, three hundred".