22231003 has 4 divisors (see below), whose sum is σ = 22290040. Its totient is φ = 22171968.

The previous prime is 22230997. The next prime is 22231037. The reversal of 22231003 is 30013222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30013222 = 2 ⋅15006611.

It is a cyclic number.

It is not a de Polignac number, because 22231003 - 2⁹ = 22230491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22231403) 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, 28950 + ... + 29707.

It is an arithmetic number, because the mean of its divisors is an integer number (5572510).

Almost surely, 2^22231003 is an apocalyptic number.

22231003 is a deficient number, since it is larger than the sum of its proper divisors (59037).

22231003 is an equidigital number, since it uses as much as digits as its factorization.

22231003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59036.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 22231003 is about 4714.9764580536. The cubic root of 22231003 is about 281.1812468651.

Adding to 22231003 its reverse (30013222), we get a palindrome (52244225).

The spelling of 22231003 in words is "twenty-two million, two hundred thirty-one thousand, three".