22250100 has 36 divisors (see below), whose sum is σ = 64377824. Its totient is φ = 5933280.

The previous prime is 22250099. The next prime is 22250101. The reversal of 22250100 is 105222.

It is an interprime number because it is at equal distance from previous prime (22250099) and next prime (22250101).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22250101) 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 11 ways as a sum of consecutive naturals, for example, 36784 + ... + 37383.

Almost surely, 2^22250100 is an apocalyptic number.

22250100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22250100 is an abundant number, since it is smaller than the sum of its proper divisors (42127724).

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

22250100 is a wasteful number, since it uses less digits than its factorization.

22250100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74184 (or 74177 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 22250100 is about 4717.0011659952. The cubic root of 22250100 is about 281.2617377817.

Adding to 22250100 its reverse (105222), we get a palindrome (22355322).

The spelling of 22250100 in words is "twenty-two million, two hundred fifty thousand, one hundred".