22220223 has 4 divisors (see below), whose sum is σ = 29626968. Its totient is φ = 14813480.

The previous prime is 22220213. The next prime is 22220227. The reversal of 22220223 is 32202222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22220223 - 2¹⁰ = 22219199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220227) 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, 3703368 + ... + 3703373.

It is an arithmetic number, because the mean of its divisors is an integer number (7406742).

Almost surely, 2^22220223 is an apocalyptic number.

22220223 is a deficient number, since it is larger than the sum of its proper divisors (7406745).

22220223 is an equidigital number, since it uses as much as digits as its factorization.

22220223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7406744.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 22220223 is about 4713.8331536023. The cubic root of 22220223 is about 281.1357904678.

Adding to 22220223 its reverse (32202222), we get a palindrome (54422445).

It can be divided in two parts, 222 and 20223, that multiplied together give a triangular number (4489506 = T₂₉₉₆).

The spelling of 22220223 in words is "twenty-two million, two hundred twenty thousand, two hundred twenty-three".