12220121223123 has 32 divisors (see below), whose sum is σ = 18140316422400. Its totient is φ = 7254696422400.

The previous prime is 12220121223113. The next prime is 12220121223161. The reversal of 12220121223123 is 32132212102221.

It is not a de Polignac number, because 12220121223123 - 2⁸ = 12220121222867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12220121223093 and 12220121223102.

It is not an unprimeable number, because it can be changed into a prime (12220121223103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10620838 + ... + 11715051.

It is an arithmetic number, because the mean of its divisors is an integer number (566884888200).

Almost surely, 2^{12220121223123} is an apocalyptic number.

12220121223123 is a deficient number, since it is larger than the sum of its proper divisors (5920195199277).

12220121223123 is a wasteful number, since it uses less digits than its factorization.

12220121223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22336243.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12220121223123 its reverse (32132212102221), we get a palindrome (44352333325344).

The spelling of 12220121223123 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twenty-three thousand, one hundred twenty-three".