12211112023123 has 64 divisors (see below), whose sum is σ = 13854060380160. Its totient is φ = 10686565757952.

The previous prime is 12211112023109. The next prime is 12211112023129. The reversal of 12211112023123 is 32132021111221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12211112023123 - 2⁵ = 12211112023091 is a prime.

It is a super-2 number, since 2×12211112023123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211112023094 and 12211112023103.

It is not an unprimeable number, because it can be changed into a prime (12211112023129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7342820590 + ... + 7342822252.

It is an arithmetic number, because the mean of its divisors is an integer number (216469693440).

Almost surely, 2^{12211112023123} is an apocalyptic number.

12211112023123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12211112023123 is a deficient number, since it is larger than the sum of its proper divisors (1642948357037).

12211112023123 is a wasteful number, since it uses less digits than its factorization.

12211112023123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12211112023123 its reverse (32132021111221), we get a palindrome (44343133134344).

The spelling of 12211112023123 in words is "twelve trillion, two hundred eleven billion, one hundred twelve million, twenty-three thousand, one hundred twenty-three".