22012300 has 18 divisors (see below), whose sum is σ = 47766908. Its totient is φ = 8804880.

The previous prime is 22012273. The next prime is 22012301. The reversal of 22012300 is 321022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (22012301) 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 5 ways as a sum of consecutive naturals, for example, 109962 + ... + 110161.

Almost surely, 2^22012300 is an apocalyptic number.

22012300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012300 is an abundant number, since it is smaller than the sum of its proper divisors (25754608).

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

22012300 is a wasteful number, since it uses less digits than its factorization.

22012300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220137 (or 220130 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 22012300 is about 4691.7267610124. The cubic root of 22012300 is about 280.2561431606.

Adding to 22012300 its reverse (321022), we get a palindrome (22333322).

The spelling of 22012300 in words is "twenty-two million, twelve thousand, three hundred".