123222231011 has 16 divisors (see below), whose sum is σ = 135468115200. Its totient is φ = 111151901280.

The previous prime is 123222230983. The next prime is 123222231017. The reversal of 123222231011 is 110132222321.

It is a cyclic number.

It is not a de Polignac number, because 123222231011 - 2²² = 123218036707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123222231017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1546040 + ... + 1623786.

It is an arithmetic number, because the mean of its divisors is an integer number (8466757200).

Almost surely, 2^123222231011 is an apocalyptic number.

123222231011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123222231011 is a deficient number, since it is larger than the sum of its proper divisors (12245884189).

123222231011 is a wasteful number, since it uses less digits than its factorization.

123222231011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78874.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123222231011 its reverse (110132222321), we get a palindrome (233354453332).

It can be divided in two parts, 1232222310 and 11, that added together give a palindrome (1232222321).

The spelling of 123222231011 in words is "one hundred twenty-three billion, two hundred twenty-two million, two hundred thirty-one thousand, eleven".