22122211222123 has 8 divisors (see below), whose sum is σ = 22150487796800. Its totient is φ = 22093947920448.

The previous prime is 22122211222091. The next prime is 22122211222169. The reversal of 22122211222123 is 32122211222122.

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 22122211222123 - 2⁵ = 22122211222091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122211222523) 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, 19438 + ... + 6651676.

It is an arithmetic number, because the mean of its divisors is an integer number (2768810974600).

Almost surely, 2^{22122211222123} is an apocalyptic number.

22122211222123 is a deficient number, since it is larger than the sum of its proper divisors (28276574677).

22122211222123 is a wasteful number, since it uses less digits than its factorization.

22122211222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6636501.

The product of its digits is 1536, while the sum is 25.

Adding to 22122211222123 its reverse (32122211222122), we get a palindrome (54244422444245).

Subtracting 22122211222123 from its reverse (32122211222122), we obtain a palindrome (9999999999999).

The spelling of 22122211222123 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred eleven million, two hundred twenty-two thousand, one hundred twenty-three".