22011023 has 8 divisors (see below), whose sum is σ = 23709696. Its totient is φ = 20374200.

The previous prime is 22011001. The next prime is 22011037. The reversal of 22011023 is 32011022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22011023 - 2⁶ = 22010959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22010995 and 22011013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14723 + ... + 16148.

It is an arithmetic number, because the mean of its divisors is an integer number (2963712).

Almost surely, 2^22011023 is an apocalyptic number.

22011023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22011023 is a deficient number, since it is larger than the sum of its proper divisors (1698673).

22011023 is a wasteful number, since it uses less digits than its factorization.

22011023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30925.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 22011023 is about 4691.5906684194. The cubic root of 22011023 is about 280.2507235540.

Adding to 22011023 its reverse (32011022), we get a palindrome (54022045).

Subtracting 22011023 from its reverse (32011022), we obtain a palindrome (9999999).

The spelling of 22011023 in words is "twenty-two million, eleven thousand, twenty-three".