13212210123 has 12 divisors (see below), whose sum is σ = 21810632688. Its totient is φ = 7549834320.

The previous prime is 13212210023. The next prime is 13212210131. The reversal of 13212210123 is 32101221231.

13212210123 is a `hidden beast` number, since 1 + 321 + 221 + 0 + 123 = 666.

It is not a de Polignac number, because 13212210123 - 2¹⁰ = 13212209099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13212210096 and 13212210105.

It is not an unprimeable number, because it can be changed into a prime (13212210173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104858748 + ... + 104858873.

It is an arithmetic number, because the mean of its divisors is an integer number (1817552724).

Almost surely, 2^13212210123 is an apocalyptic number.

13212210123 is a deficient number, since it is larger than the sum of its proper divisors (8598422565).

13212210123 is a wasteful number, since it uses less digits than its factorization.

13212210123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209717634 (or 209717631 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13212210123 its reverse (32101221231), we get a palindrome (45313431354).

The spelling of 13212210123 in words is "thirteen billion, two hundred twelve million, two hundred ten thousand, one hundred twenty-three".