22210423 has 4 divisors (see below), whose sum is σ = 22234968. Its totient is φ = 22185880.

The previous prime is 22210421. The next prime is 22210427. The reversal of 22210423 is 32401222.

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 22210423 - 2¹ = 22210421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22210397 and 22210406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210421) 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, 10861 + ... + 12742.

It is an arithmetic number, because the mean of its divisors is an integer number (5558742).

Almost surely, 2^22210423 is an apocalyptic number.

22210423 is a deficient number, since it is larger than the sum of its proper divisors (24545).

22210423 is an equidigital number, since it uses as much as digits as its factorization.

22210423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24544.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22210423 is about 4712.7935452341. The cubic root of 22210423 is about 281.0944537106.

Adding to 22210423 its reverse (32401222), we get a palindrome (54611645).

The spelling of 22210423 in words is "twenty-two million, two hundred ten thousand, four hundred twenty-three".