22228133 has 4 divisors (see below), whose sum is σ = 22701120. Its totient is φ = 21755148.

The previous prime is 22228127. The next prime is 22228139. The reversal of 22228133 is 33182222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (22228127) and next prime (22228139).

It is a cyclic number.

It is not a de Polignac number, because 22228133 - 2²⁴ = 5450917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22228099 and 22228108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22228139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236423 + ... + 236516.

It is an arithmetic number, because the mean of its divisors is an integer number (5675280).

Almost surely, 2^22228133 is an apocalyptic number.

It is an amenable number.

22228133 is a deficient number, since it is larger than the sum of its proper divisors (472987).

22228133 is an equidigital number, since it uses as much as digits as its factorization.

22228133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472986.

The product of its digits is 1152, while the sum is 23.

The square root of 22228133 is about 4714.6720988845. The cubic root of 22228133 is about 281.1691462728.

The spelling of 22228133 in words is "twenty-two million, two hundred twenty-eight thousand, one hundred thirty-three".