22012021300 has 18 divisors (see below), whose sum is σ = 47766086438. Its totient is φ = 8804808480.

The previous prime is 22012021279. The next prime is 22012021309. The reversal of 22012021300 is 312021022.

It can be written as a sum of positive squares in 3 ways, for example, as 4883493924 + 17128527376 = 69882^2 + 130876^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012021309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110060007 + ... + 110060206.

Almost surely, 2^22012021300 is an apocalyptic number.

22012021300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012021300 is an abundant number, since it is smaller than the sum of its proper divisors (25754065138).

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

22012021300 is a wasteful number, since it uses less digits than its factorization.

22012021300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220120227 (or 220120220 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22012021300 its reverse (312021022), we get a palindrome (22324042322).

The spelling of 22012021300 in words is "twenty-two billion, twelve million, twenty-one thousand, three hundred".