22100031223 has 4 divisors (see below), whose sum is σ = 22812935488. Its totient is φ = 21387126960.

The previous prime is 22100031209. The next prime is 22100031227. The reversal of 22100031223 is 32213000122.

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 22100031223 - 2³³ = 13510096631 is a prime.

It is a super-2 number, since 2×22100031223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22100031197 and 22100031206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100031227) 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, 356452086 + ... + 356452147.

It is an arithmetic number, because the mean of its divisors is an integer number (5703233872).

Almost surely, 2^22100031223 is an apocalyptic number.

22100031223 is a deficient number, since it is larger than the sum of its proper divisors (712904265).

22100031223 is an equidigital number, since it uses as much as digits as its factorization.

22100031223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712904264.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22100031223 its reverse (32213000122), we get a palindrome (54313031345).

The spelling of 22100031223 in words is "twenty-two billion, one hundred million, thirty-one thousand, two hundred twenty-three".