22001211223 has 8 divisors (see below), whose sum is σ = 22976464896. Its totient is φ = 21027514200.

The previous prime is 22001211217. The next prime is 22001211233. The reversal of 22001211223 is 32211210022.

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 22001211223 - 2⁵ = 22001211191 is a prime.

It is a super-2 number, since 2×22001211223² (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 = 22001211197 and 22001211206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001211233) 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, 360223 + ... + 416848.

It is an arithmetic number, because the mean of its divisors is an integer number (2872058112).

Almost surely, 2^22001211223 is an apocalyptic number.

22001211223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22001211223 is a deficient number, since it is larger than the sum of its proper divisors (975253673).

22001211223 is a wasteful number, since it uses less digits than its factorization.

22001211223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778325.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22001211223 its reverse (32211210022), we get a palindrome (54212421245).

The spelling of 22001211223 in words is "twenty-two billion, one million, two hundred eleven thousand, two hundred twenty-three".