22211211123 has 12 divisors (see below), whose sum is σ = 33271114968. Its totient is φ = 14807473920.

The previous prime is 22211211103. The next prime is 22211211163. The reversal of 22211211123 is 32111211222.

It is not a de Polignac number, because 22211211123 - 2⁵ = 22211211091 is a prime.

It is a super-2 number, since 2×22211211123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22211211096 and 22211211105.

It is not an unprimeable number, because it can be changed into a prime (22211211103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45701838 + ... + 45702323.

It is an arithmetic number, because the mean of its divisors is an integer number (2772592914).

Almost surely, 2^22211211123 is an apocalyptic number.

22211211123 is a deficient number, since it is larger than the sum of its proper divisors (11059903845).

22211211123 is an frugal number, since it uses more digits than its factorization.

22211211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91404176 (or 91404164 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

Adding to 22211211123 its reverse (32111211222), we get a palindrome (54322422345).

Subtracting 22211211123 from its reverse (32111211222), we obtain a palindrome (9900000099).

The spelling of 22211211123 in words is "twenty-two billion, two hundred eleven million, two hundred eleven thousand, one hundred twenty-three".