22220233 has 4 divisors (see below), whose sum is σ = 25394560. Its totient is φ = 19045908.

The previous prime is 22220227. The next prime is 22220249. The reversal of 22220233 is 33202222.

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 not a de Polignac number, because 22220233 - 2¹⁷ = 22089161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22220203) 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, 1587153 + ... + 1587166.

It is an arithmetic number, because the mean of its divisors is an integer number (6348640).

Almost surely, 2^22220233 is an apocalyptic number.

It is an amenable number.

22220233 is a deficient number, since it is larger than the sum of its proper divisors (3174327).

22220233 is an equidigital number, since it uses as much as digits as its factorization.

22220233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174326.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 22220233 is about 4713.8342143100. The cubic root of 22220233 is about 281.1358326419.

Adding to 22220233 its reverse (33202222), we get a palindrome (55422455).

The spelling of 22220233 in words is "twenty-two million, two hundred twenty thousand, two hundred thirty-three".