12220213210123 has 4 divisors (see below), whose sum is σ = 12614413636288. Its totient is φ = 11826012783960.

The previous prime is 12220213210069. The next prime is 12220213210129. The reversal of 12220213210123 is 32101231202221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12220213210123 - 2²¹ = 12220211112971 is a prime.

It is a super-2 number, since 2×12220213210123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12220213210094 and 12220213210103.

It is not an unprimeable number, because it can be changed into a prime (12220213210129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197100213036 + ... + 197100213097.

It is an arithmetic number, because the mean of its divisors is an integer number (3153603409072).

Almost surely, 2^{12220213210123} is an apocalyptic number.

12220213210123 is a deficient number, since it is larger than the sum of its proper divisors (394200426165).

12220213210123 is an equidigital number, since it uses as much as digits as its factorization.

12220213210123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394200426164.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12220213210123 its reverse (32101231202221), we get a palindrome (44321444412344).

The spelling of 12220213210123 in words is "twelve trillion, two hundred twenty billion, two hundred thirteen million, two hundred ten thousand, one hundred twenty-three".