123222001123 has 6 divisors (see below), whose sum is σ = 133429741044. Its totient is φ = 113743385496.

The previous prime is 123222001121. The next prime is 123222001129. The reversal of 123222001123 is 321100222321.

It is not a de Polignac number, because 123222001123 - 2¹ = 123222001121 is a prime.

It is a super-2 number, since 2×123222001123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123222001123.

It is not an unprimeable number, because it can be changed into a prime (123222001121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 364561965 + ... + 364562302.

It is an arithmetic number, because the mean of its divisors is an integer number (22238290174).

Almost surely, 2^123222001123 is an apocalyptic number.

123222001123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123222001123 is a deficient number, since it is larger than the sum of its proper divisors (10207739921).

123222001123 is an equidigital number, since it uses as much as digits as its factorization.

123222001123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729124293 (or 729124280 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123222001123 its reverse (321100222321), we get a palindrome (444322223444).

The spelling of 123222001123 in words is "one hundred twenty-three billion, two hundred twenty-two million, one thousand, one hundred twenty-three".