222101111123 has 2 divisors, whose sum is σ = 222101111124. Its totient is φ = 222101111122.

The previous prime is 222101111069. The next prime is 222101111143. The reversal of 222101111123 is 321111101222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222101111123 is a prime.

It is a super-2 number, since 2×222101111123² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222101111143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111050555561 + 111050555562.

It is an arithmetic number, because the mean of its divisors is an integer number (111050555562).

Almost surely, 2^222101111123 is an apocalyptic number.

222101111123 is a deficient number, since it is larger than the sum of its proper divisors (1).

222101111123 is an equidigital number, since it uses as much as digits as its factorization.

222101111123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 222101111123 its reverse (321111101222), we get a palindrome (543212212345).

Subtracting 222101111123 from its reverse (321111101222), we obtain a palindrome (99009990099).

The spelling of 222101111123 in words is "two hundred twenty-two billion, one hundred one million, one hundred eleven thousand, one hundred twenty-three".